Package com.illumon.iris.libs.primitives

Class IntegerNumericPrimitives

java.lang.Object

com.illumon.iris.libs.primitives.IntegerNumericPrimitives

public class IntegerNumericPrimitives
extends Object

A set of commonly used numeric functions that can be applied to Integer types.

Constructor Summary

Constructors

Constructor	Description
IntegerNumericPrimitives()

Method Summary

Modifier and Type	Method	Description
static int	abs(int value)	Returns the absolute value.
static double	absAvg(int[] values)	Returns the mean of the absolute values of values.
static double	absAvg(DbIntArray values)	Returns the mean of the absolute values of values.
static double	absAvg(Integer... values)	Returns the mean of the absolute values of values.
static double	acos(int value)	Returns the arc cosine.
static double	asin(int value)	Returns the arc sine.
static double	atan(int value)	Returns the arc tangent.
static double	avg(int[] values)	Returns the mean.
static double	avg(DbIntArray values)	Returns the mean.
static double	avg(Integer... values)	Returns the mean.
static int	binSearchIndex(int[] values, int key, BinSearch choiceWhenEquals)	Performs a binary search to find a key.
static int	binSearchIndex(DbIntArray values, int key, BinSearch choiceWhenEquals)	Performs a binary search to find a key.
static double	ceil(int value)	Returns the ceiling.
static int	clamp(int value, int min, int max)	Constrains the value to be on the [min,max] range.
static double	cor(int[] values0, int[] values1)	Returns the correlation.
static double	cor(int[] values0, DbIntArray values1)	Returns the correlation.
static double	cor(DbIntArray values0, int[] values1)	Returns the correlation.
static double	cor(DbIntArray values0, DbIntArray values1)	Returns the correlation.
static double	cos(int value)	Returns the cosine.
static int	countNeg(int[] values)	Counts the number of negative values.
static int	countNeg(DbIntArray values)	Counts the number of negative values.
static int	countNeg(Integer... values)	Counts the number of negative values.
static int	countPos(int[] values)	Counts the number of positive values.
static int	countPos(DbIntArray values)	Counts the number of positive values.
static int	countPos(Integer... values)	Counts the number of positive values.
static int	countZero(int[] values)	Counts the number of zero values.
static int	countZero(DbIntArray values)	Counts the number of zero values.
static int	countZero(Integer... values)	Counts the number of zero values.
static double	cov(int[] values0, int[] values1)	Returns the covariance.
static double	cov(int[] values0, DbIntArray values1)	Returns the covariance.
static double	cov(DbIntArray values0, int[] values1)	Returns the covariance.
static double	cov(DbIntArray values0, DbIntArray values1)	Returns the covariance.
static int[]	cumMax(int... values)	Returns the cumulative minimum.
static int[]	cumMin(int... values)	Returns the cumulative minimum.
static int[]	cumprod(int[] values)	Returns the cumulative product.
static int[]	cumprod(DbIntArray values)	Returns the cumulative product.
static int[]	cumprod(Integer... values)	Returns the cumulative product.
static int[]	cumsum(int[] values)	Returns the cumulative sum.
static int[]	cumsum(DbIntArray values)	Returns the cumulative sum.
static int[]	cumsum(Integer... values)	Returns the cumulative sum.
static double	exp(int value)	Returns Euler's number e raised to a power.
static int	firstIndexOf(int[] values, int val)	Returns the first index containing the value.
static int	firstIndexOf(DbIntArray values, int val)	Returns the first index containing the value.
static double	floor(int value)	Returns the floor.
static int	indexOfMax(int[] values)	Returns the index of the maximum value.
static int	indexOfMax(DbIntArray values)	Returns the index of the maximum value.
static int	indexOfMax(Integer... values)	Returns the index of the maximum value.
static int	indexOfMin(int[] values)	Returns the index of the minimum value.
static int	indexOfMin(DbIntArray values)	Returns the index of the minimum value.
static int	indexOfMin(Integer... values)	Returns the index of the minimum value.
static double	log(int value)	Returns the natural logarithm (base e).
static int	lowerBin(int value, int interval)	Returns the lower bound of the bin containing the value.
static int	lowerBin(int value, int interval, int offset)	Returns the lower bound of the bin containing the value.
static int	max(int[] values)	Returns the maximum.
static int	max(DbIntArray values)	Returns the maximum.
static int	max(Integer... values)	Returns the maximum.
static double	median(int[] values)	Returns the median.
static double	median(DbIntArray values)	Returns the median.
static double	median(Integer... values)	Returns the median.
static int	min(int[] values)	Returns the minimum.
static int	min(DbIntArray values)	Returns the minimum.
static int	min(Integer... values)	Returns the minimum.
static double	percentile(double percentile, int... values)	Returns the percentile.
static double	percentile(double percentile, DbIntArray values)	Returns the percentile.
static double	pow(int a, int b)	Returns the value of the first argument raised to the second argument.
static int	product(int[] values)	Returns the product.
static int	product(DbIntArray values)	Returns the product.
static int	rawBinSearchIndex(int[] values, int key, BinSearch choiceWhenEquals)	Performs a binary search to find a key.
static int	rawBinSearchIndex(DbIntArray values, int key, BinSearch choiceWhenEquals)	Performs a binary search to find a key.
static double	rint(int value)	Returns the integer closest to the input value.
static long	round(int value)	Returns the closest integer to the argument.
static int[]	sequence(int start, int end, int step)	Returns a sequence of values.
static int	signum(int value)	Returns the signum function.
static double	sin(int value)	Returns the sine.
static int[]	sort(int[] values)	Returns sorted values from smallest to largest.
static DbIntArray	sort(DbIntArray values)	Returns sorted values from smallest to largest.
static int[]	sort(Integer... values)	Returns sorted values from smallest to largest.
static int[]	sortDescending(int[] values)	Returns sorted values from largest to smallest.
static DbIntArray	sortDescending(DbIntArray values)	Returns sorted values from largest to smallest.
static int[]	sortDescending(Integer... values)	Returns sorted values from largest to smallest.
static double	sqrt(int value)	Returns the square root.
static double	std(int[] values)	Returns the standard deviation.
static double	std(DbIntArray values)	Returns the standard deviation.
static double	std(Integer... values)	Returns the standard deviation.
static double	ste(int[] values)	Returns the standard error.
static double	ste(DbIntArray values)	Returns the standard error.
static double	ste(Integer... values)	Returns the standard error.
static int	sum(int[] values)	Returns the sum.
static int[]	sum(int[]... values)	Returns the sum.
static int[]	sum(DbArray<int[]> values)	Returns the sum.
static int	sum(DbIntArray values)	Returns the sum.
static double	tan(int value)	Returns the tangent.
static double	tstat(int[] values)	Returns the t-statistic.
static double	tstat(DbIntArray values)	Returns the t-statistic.
static double	tstat(Integer... values)	Returns the t-statistic.
static int	upperBin(int value, int interval)	Returns the upper bound of the bin containing the value.
static int	upperBin(int value, int interval, int offset)	Returns the upper bound of the bin containing the value.
static double	var(int[] values)	Returns the variance.
static double	var(DbIntArray values)	Returns the variance.
static double	var(Integer... values)	Returns the variance.
static double	wavg(int[] values, double[] weights)	Returns the weighted average.
static double	wavg(int[] values, float[] weights)	Returns the weighted average.
static double	wavg(int[] values, int[] weights)	Returns the weighted average.
static double	wavg(int[] values, long[] weights)	Returns the weighted average.
static double	wavg(int[] values, short[] weights)	Returns the weighted average.
static double	wavg(int[] values, DbDoubleArray weights)	Returns the weighted average.
static double	wavg(int[] values, DbFloatArray weights)	Returns the weighted average.
static double	wavg(int[] values, DbIntArray weights)	Returns the weighted average.
static double	wavg(int[] values, DbLongArray weights)	Returns the weighted average.
static double	wavg(int[] values, DbShortArray weights)	Returns the weighted average.
static double	wavg(DbIntArray values, double[] weights)	Returns the weighted average.
static double	wavg(DbIntArray values, float[] weights)	Returns the weighted average.
static double	wavg(DbIntArray values, int[] weights)	Returns the weighted average.
static double	wavg(DbIntArray values, long[] weights)	Returns the weighted average.
static double	wavg(DbIntArray values, short[] weights)	Returns the weighted average.
static double	wavg(DbIntArray values, DbDoubleArray weights)	Returns the weighted average.
static double	wavg(DbIntArray values, DbFloatArray weights)	Returns the weighted average.
static double	wavg(DbIntArray values, DbIntArray weights)	Returns the weighted average.
static double	wavg(DbIntArray values, DbLongArray weights)	Returns the weighted average.
static double	wavg(DbIntArray values, DbShortArray weights)	Returns the weighted average.
static double	weightedAvg(int[] values, double[] weights)	Returns the weighted average.
static double	weightedAvg(int[] values, float[] weights)	Returns the weighted average.
static double	weightedAvg(int[] values, int[] weights)	Returns the weighted average.
static double	weightedAvg(int[] values, long[] weights)	Returns the weighted average.
static double	weightedAvg(int[] values, short[] weights)	Returns the weighted average.
static double	weightedAvg(int[] values, DbDoubleArray weights)	Returns the weighted average.
static double	weightedAvg(int[] values, DbFloatArray weights)	Returns the weighted average.
static double	weightedAvg(int[] values, DbIntArray weights)	Returns the weighted average.
static double	weightedAvg(int[] values, DbLongArray weights)	Returns the weighted average.
static double	weightedAvg(int[] values, DbShortArray weights)	Returns the weighted average.
static double	weightedAvg(DbIntArray values, double[] weights)	Returns the weighted average.
static double	weightedAvg(DbIntArray values, float[] weights)	Returns the weighted average.
static double	weightedAvg(DbIntArray values, int[] weights)	Returns the weighted average.
static double	weightedAvg(DbIntArray values, long[] weights)	Returns the weighted average.
static double	weightedAvg(DbIntArray values, short[] weights)	Returns the weighted average.
static double	weightedAvg(DbIntArray values, DbDoubleArray weights)	Returns the weighted average.
static double	weightedAvg(DbIntArray values, DbFloatArray weights)	Returns the weighted average.
static double	weightedAvg(DbIntArray values, DbIntArray weights)	Returns the weighted average.
static double	weightedAvg(DbIntArray values, DbLongArray weights)	Returns the weighted average.
static double	weightedAvg(DbIntArray values, DbShortArray weights)	Returns the weighted average.
static double	weightedSum(int[] values, double[] weights)	Returns the weighted sum.
static double	weightedSum(int[] values, float[] weights)	Returns the weighted sum.
static double	weightedSum(int[] values, int[] weights)	Returns the weighted sum.
static double	weightedSum(int[] values, long[] weights)	Returns the weighted sum.
static double	weightedSum(int[] values, short[] weights)	Returns the weighted sum.
static double	weightedSum(int[] values, DbDoubleArray weights)	Returns the weighted sum.
static double	weightedSum(int[] values, DbFloatArray weights)	Returns the weighted sum.
static double	weightedSum(int[] values, DbIntArray weights)	Returns the weighted sum.
static double	weightedSum(int[] values, DbLongArray weights)	Returns the weighted sum.
static double	weightedSum(int[] values, DbShortArray weights)	Returns the weighted sum.
static double	weightedSum(DbIntArray values, double[] weights)	Returns the weighted sum.
static double	weightedSum(DbIntArray values, float[] weights)	Returns the weighted sum.
static double	weightedSum(DbIntArray values, int[] weights)	Returns the weighted sum.
static double	weightedSum(DbIntArray values, long[] weights)	Returns the weighted sum.
static double	weightedSum(DbIntArray values, short[] weights)	Returns the weighted sum.
static double	weightedSum(DbIntArray values, DbDoubleArray weights)	Returns the weighted sum.
static double	weightedSum(DbIntArray values, DbFloatArray weights)	Returns the weighted sum.
static double	weightedSum(DbIntArray values, DbIntArray weights)	Returns the weighted sum.
static double	weightedSum(DbIntArray values, DbLongArray weights)	Returns the weighted sum.
static double	weightedSum(DbIntArray values, DbShortArray weights)	Returns the weighted sum.
static double	wstd(int[] values, double[] weights)	Returns the weighted standard deviation.
static double	wstd(int[] values, float[] weights)	Returns the weighted standard deviation.
static double	wstd(int[] values, int[] weights)	Returns the weighted standard deviation.
static double	wstd(int[] values, long[] weights)	Returns the weighted standard deviation.
static double	wstd(int[] values, short[] weights)	Returns the weighted standard deviation.
static double	wstd(int[] values, DbDoubleArray weights)	Returns the weighted standard deviation.
static double	wstd(int[] values, DbFloatArray weights)	Returns the weighted standard deviation.
static double	wstd(int[] values, DbIntArray weights)	Returns the weighted standard deviation.
static double	wstd(int[] values, DbLongArray weights)	Returns the weighted standard deviation.
static double	wstd(int[] values, DbShortArray weights)	Returns the weighted standard deviation.
static double	wstd(DbIntArray values, double[] weights)	Returns the weighted standard deviation.
static double	wstd(DbIntArray values, float[] weights)	Returns the weighted standard deviation.
static double	wstd(DbIntArray values, int[] weights)	Returns the weighted standard deviation.
static double	wstd(DbIntArray values, long[] weights)	Returns the weighted standard deviation.
static double	wstd(DbIntArray values, short[] weights)	Returns the weighted standard deviation.
static double	wstd(DbIntArray values, DbDoubleArray weights)	Returns the weighted standard deviation.
static double	wstd(DbIntArray values, DbFloatArray weights)	Returns the weighted standard deviation.
static double	wstd(DbIntArray values, DbIntArray weights)	Returns the weighted standard deviation.
static double	wstd(DbIntArray values, DbLongArray weights)	Returns the weighted standard deviation.
static double	wstd(DbIntArray values, DbShortArray weights)	Returns the weighted standard deviation.
static double	wste(int[] values, double[] weights)	Returns the weighted standard error.
static double	wste(int[] values, float[] weights)	Returns the weighted standard error.
static double	wste(int[] values, int[] weights)	Returns the weighted standard error.
static double	wste(int[] values, long[] weights)	Returns the weighted standard error.
static double	wste(int[] values, short[] weights)	Returns the weighted standard error.
static double	wste(int[] values, DbDoubleArray weights)	Returns the weighted standard error.
static double	wste(int[] values, DbFloatArray weights)	Returns the weighted standard error.
static double	wste(int[] values, DbIntArray weights)	Returns the weighted standard error.
static double	wste(int[] values, DbLongArray weights)	Returns the weighted standard error.
static double	wste(int[] values, DbShortArray weights)	Returns the weighted standard error.
static double	wste(DbIntArray values, double[] weights)	Returns the weighted standard error.
static double	wste(DbIntArray values, float[] weights)	Returns the weighted standard error.
static double	wste(DbIntArray values, int[] weights)	Returns the weighted standard error.
static double	wste(DbIntArray values, long[] weights)	Returns the weighted standard error.
static double	wste(DbIntArray values, short[] weights)	Returns the weighted standard error.
static double	wste(DbIntArray values, DbDoubleArray weights)	Returns the weighted standard error.
static double	wste(DbIntArray values, DbFloatArray weights)	Returns the weighted standard error.
static double	wste(DbIntArray values, DbIntArray weights)	Returns the weighted standard error.
static double	wste(DbIntArray values, DbLongArray weights)	Returns the weighted standard error.
static double	wste(DbIntArray values, DbShortArray weights)	Returns the weighted standard error.
static double	wsum(int[] values, double[] weights)	Returns the weighted sum.
static double	wsum(int[] values, float[] weights)	Returns the weighted sum.
static double	wsum(int[] values, int[] weights)	Returns the weighted sum.
static double	wsum(int[] values, long[] weights)	Returns the weighted sum.
static double	wsum(int[] values, short[] weights)	Returns the weighted sum.
static double	wsum(int[] values, DbDoubleArray weights)	Returns the weighted sum.
static double	wsum(int[] values, DbFloatArray weights)	Returns the weighted sum.
static double	wsum(int[] values, DbIntArray weights)	Returns the weighted sum.
static double	wsum(int[] values, DbLongArray weights)	Returns the weighted sum.
static double	wsum(int[] values, DbShortArray weights)	Returns the weighted sum.
static double	wsum(DbIntArray values, double[] weights)	Returns the weighted sum.
static double	wsum(DbIntArray values, float[] weights)	Returns the weighted sum.
static double	wsum(DbIntArray values, int[] weights)	Returns the weighted sum.
static double	wsum(DbIntArray values, long[] weights)	Returns the weighted sum.
static double	wsum(DbIntArray values, short[] weights)	Returns the weighted sum.
static double	wsum(DbIntArray values, DbDoubleArray weights)	Returns the weighted sum.
static double	wsum(DbIntArray values, DbFloatArray weights)	Returns the weighted sum.
static double	wsum(DbIntArray values, DbIntArray weights)	Returns the weighted sum.
static double	wsum(DbIntArray values, DbLongArray weights)	Returns the weighted sum.
static double	wsum(DbIntArray values, DbShortArray weights)	Returns the weighted sum.
static double	wtstat(int[] values, double[] weights)	Returns the weighted t-statistic.
static double	wtstat(int[] values, float[] weights)	Returns the weighted t-statistic.
static double	wtstat(int[] values, int[] weights)	Returns the weighted t-statistic.
static double	wtstat(int[] values, long[] weights)	Returns the weighted t-statistic.
static double	wtstat(int[] values, short[] weights)	Returns the weighted t-statistic.
static double	wtstat(int[] values, DbDoubleArray weights)	Returns the weighted t-statistic.
static double	wtstat(int[] values, DbFloatArray weights)	Returns the weighted t-statistic.
static double	wtstat(int[] values, DbIntArray weights)	Returns the weighted t-statistic.
static double	wtstat(int[] values, DbLongArray weights)	Returns the weighted t-statistic.
static double	wtstat(int[] values, DbShortArray weights)	Returns the weighted t-statistic.
static double	wtstat(DbIntArray values, double[] weights)	Returns the weighted t-statistic.
static double	wtstat(DbIntArray values, float[] weights)	Returns the weighted t-statistic.
static double	wtstat(DbIntArray values, int[] weights)	Returns the weighted t-statistic.
static double	wtstat(DbIntArray values, long[] weights)	Returns the weighted t-statistic.
static double	wtstat(DbIntArray values, short[] weights)	Returns the weighted t-statistic.
static double	wtstat(DbIntArray values, DbDoubleArray weights)	Returns the weighted t-statistic.
static double	wtstat(DbIntArray values, DbFloatArray weights)	Returns the weighted t-statistic.
static double	wtstat(DbIntArray values, DbIntArray weights)	Returns the weighted t-statistic.
static double	wtstat(DbIntArray values, DbLongArray weights)	Returns the weighted t-statistic.
static double	wtstat(DbIntArray values, DbShortArray weights)	Returns the weighted t-statistic.
static double	wvar(int[] values, double[] weights)	Returns the weighted variance.
static double	wvar(int[] values, float[] weights)	Returns the weighted variance.
static double	wvar(int[] values, int[] weights)	Returns the weighted variance.
static double	wvar(int[] values, long[] weights)	Returns the weighted variance.
static double	wvar(int[] values, short[] weights)	Returns the weighted variance.
static double	wvar(int[] values, DbDoubleArray weights)	Returns the weighted variance.
static double	wvar(int[] values, DbFloatArray weights)	Returns the weighted variance.
static double	wvar(int[] values, DbIntArray weights)	Returns the weighted variance.
static double	wvar(int[] values, DbLongArray weights)	Returns the weighted variance.
static double	wvar(int[] values, DbShortArray weights)	Returns the weighted variance.
static double	wvar(DbIntArray values, double[] weights)	Returns the weighted variance.
static double	wvar(DbIntArray values, float[] weights)	Returns the weighted variance.
static double	wvar(DbIntArray values, int[] weights)	Returns the weighted variance.
static double	wvar(DbIntArray values, long[] weights)	Returns the weighted variance.
static double	wvar(DbIntArray values, short[] weights)	Returns the weighted variance.
static double	wvar(DbIntArray values, DbDoubleArray weights)	Returns the weighted variance.
static double	wvar(DbIntArray values, DbFloatArray weights)	Returns the weighted variance.
static double	wvar(DbIntArray values, DbIntArray weights)	Returns the weighted variance.
static double	wvar(DbIntArray values, DbLongArray weights)	Returns the weighted variance.
static double	wvar(DbIntArray values, DbShortArray weights)	Returns the weighted variance.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

IntegerNumericPrimitives

public IntegerNumericPrimitives()

Method Details

countPos

public static int countPos(Integer... values)

Counts the number of positive values.

Parameters:

values - values.

Returns:

number of positive values.

countPos

public static int countPos(int[] values)

Counts the number of positive values.

Parameters:

values - values.

Returns:

number of positive values.

countPos

public static int countPos(DbIntArray values)

Counts the number of positive values.

Parameters:

values - values.

Returns:

number of positive values.

countNeg

public static int countNeg(Integer... values)

Counts the number of negative values.

Parameters:

values - values.

Returns:

number of negative values.

countNeg

public static int countNeg(int[] values)

Counts the number of negative values.

Parameters:

values - values.

Returns:

number of negative values.

countNeg

public static int countNeg(DbIntArray values)

Counts the number of negative values.

Parameters:

values - values.

Returns:

number of negative values.

countZero

public static int countZero(Integer... values)

Counts the number of zero values.

Parameters:

values - values.

Returns:

number of zero values.

countZero

public static int countZero(int[] values)

Counts the number of zero values.

Parameters:

values - values.

Returns:

number of zero values.

countZero

public static int countZero(DbIntArray values)

Counts the number of zero values.

Parameters:

values - values.

Returns:

number of zero values.

avg

public static double avg(Integer... values)

Returns the mean. Null values are excluded.

Parameters:

values - values.

Returns:

mean of non-null values.

avg

public static double avg(int[] values)

Returns the mean. Null values are excluded.

Parameters:

values - values.

Returns:

mean of non-null values.

avg

public static double avg(DbIntArray values)

Returns the mean. Null values are excluded.

Parameters:

values - values.

Returns:

mean of non-null values.

absAvg

public static double absAvg(Integer... values)

Returns the mean of the absolute values of values. Null values are excluded.

Parameters:

values - values.

Returns:

mean of the absolute value of non-null values.

absAvg

public static double absAvg(int[] values)

Returns the mean of the absolute values of values. Null values are excluded.

Parameters:

values - values.

Returns:

mean of the absolute value of non-null values.

absAvg

public static double absAvg(DbIntArray values)

Returns the mean of the absolute values of values. Null values are excluded.

Parameters:

values - values.

Returns:

mean of the absolute value of non-null values.

var

public static double var(Integer... values)

Returns the variance. Null values are excluded.

Parameters:

values - values.

Returns:

variance of non-null values.

var

public static double var(int[] values)

Returns the variance. Null values are excluded.

Parameters:

values - values.

Returns:

variance of non-null values.

var

public static double var(DbIntArray values)

Returns the variance. Null values are excluded.

Parameters:

values - values.

Returns:

variance of non-null values.

wvar

public static double wvar(int[] values,
 DbDoubleArray weights)

Returns the weighted variance. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted variance of non-null values.

wvar

public static double wvar(DbIntArray values,
 double[] weights)

Returns the weighted variance. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted variance of non-null values.

wvar

public static double wvar(int[] values,
 double[] weights)

Returns the weighted variance. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted variance of non-null values.

wvar

public static double wvar(DbIntArray values,
 DbDoubleArray weights)

Returns the weighted variance. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted variance of non-null values.

wvar

public static double wvar(int[] values,
 DbFloatArray weights)

Returns the weighted variance. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted variance of non-null values.

wvar

public static double wvar(DbIntArray values,
 float[] weights)

Returns the weighted variance. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted variance of non-null values.

wvar

public static double wvar(int[] values,
 float[] weights)

Returns the weighted variance. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted variance of non-null values.

wvar

public static double wvar(DbIntArray values,
 DbFloatArray weights)

Returns the weighted variance. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted variance of non-null values.

wvar

public static double wvar(int[] values,
 DbShortArray weights)

Returns the weighted variance. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted variance of non-null values.

wvar

public static double wvar(DbIntArray values,
 short[] weights)

Returns the weighted variance. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted variance of non-null values.

wvar

public static double wvar(int[] values,
 short[] weights)

Returns the weighted variance. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted variance of non-null values.

wvar

public static double wvar(DbIntArray values,
 DbShortArray weights)

Returns the weighted variance. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted variance of non-null values.

wvar

public static double wvar(int[] values,
 DbIntArray weights)

Returns the weighted variance. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted variance of non-null values.

wvar

public static double wvar(DbIntArray values,
 int[] weights)

Returns the weighted variance. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted variance of non-null values.

wvar

public static double wvar(int[] values,
 int[] weights)

Returns the weighted variance. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted variance of non-null values.

wvar

public static double wvar(DbIntArray values,
 DbIntArray weights)

Returns the weighted variance. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted variance of non-null values.

wvar

public static double wvar(int[] values,
 DbLongArray weights)

Returns the weighted variance. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted variance of non-null values.

wvar

public static double wvar(DbIntArray values,
 long[] weights)

Returns the weighted variance. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted variance of non-null values.

wvar

public static double wvar(int[] values,
 long[] weights)

Returns the weighted variance. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted variance of non-null values.

wvar

public static double wvar(DbIntArray values,
 DbLongArray weights)

Returns the weighted variance. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted variance of non-null values.

std

public static double std(Integer... values)

Returns the standard deviation. Null values are excluded.

Parameters:

values - values.

Returns:

standard deviation of non-null values.

std

public static double std(int[] values)

Returns the standard deviation. Null values are excluded.

Parameters:

values - values.

Returns:

standard deviation of non-null values.

std

public static double std(DbIntArray values)

Returns the standard deviation. Null values are excluded.

Parameters:

values - values.

Returns:

standard deviation of non-null values.

wstd

public static double wstd(int[] values,
 DbDoubleArray weights)

Returns the weighted standard deviation. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard deviation of non-null values.

wstd

public static double wstd(DbIntArray values,
 double[] weights)

Returns the weighted standard deviation. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard deviation of non-null values.

wstd

public static double wstd(int[] values,
 double[] weights)

Returns the weighted standard deviation. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard deviation of non-null values.

wstd

public static double wstd(DbIntArray values,
 DbDoubleArray weights)

Returns the weighted standard deviation. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard deviation of non-null values.

wstd

public static double wstd(int[] values,
 DbFloatArray weights)

Returns the weighted standard deviation. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard deviation of non-null values.

wstd

public static double wstd(DbIntArray values,
 float[] weights)

Returns the weighted standard deviation. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard deviation of non-null values.

wstd

public static double wstd(int[] values,
 float[] weights)

Returns the weighted standard deviation. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard deviation of non-null values.

wstd

public static double wstd(DbIntArray values,
 DbFloatArray weights)

Returns the weighted standard deviation. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard deviation of non-null values.

wstd

public static double wstd(int[] values,
 DbIntArray weights)

Returns the weighted standard deviation. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard deviation of non-null values.

wstd

public static double wstd(DbIntArray values,
 int[] weights)

Returns the weighted standard deviation. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard deviation of non-null values.

wstd

public static double wstd(int[] values,
 int[] weights)

Returns the weighted standard deviation. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard deviation of non-null values.

wstd

public static double wstd(DbIntArray values,
 DbIntArray weights)

Returns the weighted standard deviation. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard deviation of non-null values.

wstd

public static double wstd(int[] values,
 DbShortArray weights)

Returns the weighted standard deviation. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard deviation of non-null values.

wstd

public static double wstd(DbIntArray values,
 short[] weights)

Returns the weighted standard deviation. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard deviation of non-null values.

wstd

public static double wstd(int[] values,
 short[] weights)

Returns the weighted standard deviation. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard deviation of non-null values.

wstd

public static double wstd(DbIntArray values,
 DbShortArray weights)

Returns the weighted standard deviation. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard deviation of non-null values.

wstd

public static double wstd(int[] values,
 DbLongArray weights)

Returns the weighted standard deviation. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard deviation of non-null values.

wstd

public static double wstd(DbIntArray values,
 long[] weights)

Returns the weighted standard deviation. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard deviation of non-null values.

wstd

public static double wstd(int[] values,
 long[] weights)

Returns the weighted standard deviation. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard deviation of non-null values.

wstd

public static double wstd(DbIntArray values,
 DbLongArray weights)

Returns the weighted standard deviation. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard deviation of non-null values.

ste

public static double ste(Integer... values)

Returns the standard error. Null values are excluded.

Parameters:

values - values.

Returns:

standard error of non-null values.

ste

public static double ste(int[] values)

Returns the standard error. Null values are excluded.

Parameters:

values - values.

Returns:

standard error of non-null values.

ste

public static double ste(DbIntArray values)

Returns the standard error. Null values are excluded.

Parameters:

values - values.

Returns:

standard error of non-null values.

wste

public static double wste(int[] values,
 DbDoubleArray weights)

Returns the weighted standard error. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard error of non-null values.

wste

public static double wste(DbIntArray values,
 double[] weights)

Returns the weighted standard error. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard error of non-null values.

wste

public static double wste(int[] values,
 double[] weights)

Returns the weighted standard error. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard error of non-null values.

wste

public static double wste(DbIntArray values,
 DbDoubleArray weights)

Returns the weighted standard error. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard error of non-null values.

wste

public static double wste(int[] values,
 DbFloatArray weights)

Returns the weighted standard error. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard error of non-null values.

wste

public static double wste(DbIntArray values,
 float[] weights)

Returns the weighted standard error. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard error of non-null values.

wste

public static double wste(int[] values,
 float[] weights)

Returns the weighted standard error. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard error of non-null values.

wste

public static double wste(DbIntArray values,
 DbFloatArray weights)

Returns the weighted standard error. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard error of non-null values.

wste

public static double wste(int[] values,
 DbIntArray weights)

Returns the weighted standard error. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard error of non-null values.

wste

public static double wste(DbIntArray values,
 int[] weights)

Returns the weighted standard error. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard error of non-null values.

wste

public static double wste(int[] values,
 int[] weights)

Returns the weighted standard error. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard error of non-null values.

wste

public static double wste(DbIntArray values,
 DbIntArray weights)

Returns the weighted standard error. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard error of non-null values.

wste

public static double wste(int[] values,
 DbShortArray weights)

Returns the weighted standard error. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard error of non-null values.

wste

public static double wste(DbIntArray values,
 short[] weights)

Returns the weighted standard error. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard error of non-null values.

wste

public static double wste(int[] values,
 short[] weights)

Returns the weighted standard error. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard error of non-null values.

wste

public static double wste(DbIntArray values,
 DbShortArray weights)

Returns the weighted standard error. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard error of non-null values.

wste

public static double wste(int[] values,
 DbLongArray weights)

Returns the weighted standard error. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard error of non-null values.

wste

public static double wste(DbIntArray values,
 long[] weights)

Returns the weighted standard error. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard error of non-null values.

wste

public static double wste(int[] values,
 long[] weights)

Returns the weighted standard error. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard error of non-null values.

wste

public static double wste(DbIntArray values,
 DbLongArray weights)

Returns the weighted standard error. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted standard error of non-null values.

tstat

public static double tstat(Integer... values)

Returns the t-statistic. Null values are excluded.

Parameters:

values - values.

Returns:

t-statistic of non-null values.

tstat

public static double tstat(int[] values)

Returns the t-statistic. Null values are excluded.

Parameters:

values - values.

Returns:

t-statistic of non-null values.

tstat

public static double tstat(DbIntArray values)

Returns the t-statistic. Null values are excluded.

Parameters:

values - values.

Returns:

t-statistic of non-null values.

wtstat

public static double wtstat(int[] values,
 DbDoubleArray weights)

Returns the weighted t-statistic. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted t-statistic of non-null values.

wtstat

public static double wtstat(DbIntArray values,
 double[] weights)

Returns the weighted t-statistic. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted t-statistic of non-null values.

wtstat

public static double wtstat(int[] values,
 double[] weights)

Returns the weighted t-statistic. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted t-statistic of non-null values.

wtstat

public static double wtstat(DbIntArray values,
 DbDoubleArray weights)

Returns the weighted t-statistic. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted t-statistic of non-null values.

wtstat

public static double wtstat(int[] values,
 DbFloatArray weights)

Returns the weighted t-statistic. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted t-statistic of non-null values.

wtstat

public static double wtstat(DbIntArray values,
 float[] weights)

Returns the weighted t-statistic. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted t-statistic of non-null values.

wtstat

public static double wtstat(int[] values,
 float[] weights)

Returns the weighted t-statistic. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted t-statistic of non-null values.

wtstat

public static double wtstat(DbIntArray values,
 DbFloatArray weights)

Returns the weighted t-statistic. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted t-statistic of non-null values.

wtstat

public static double wtstat(int[] values,
 DbIntArray weights)

Returns the weighted t-statistic. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted t-statistic of non-null values.

wtstat

public static double wtstat(DbIntArray values,
 int[] weights)

Returns the weighted t-statistic. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted t-statistic of non-null values.

wtstat

public static double wtstat(int[] values,
 int[] weights)

Returns the weighted t-statistic. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted t-statistic of non-null values.

wtstat

public static double wtstat(DbIntArray values,
 DbIntArray weights)

Returns the weighted t-statistic. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted t-statistic of non-null values.

wtstat

public static double wtstat(int[] values,
 DbShortArray weights)

Returns the weighted t-statistic. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted t-statistic of non-null values.

wtstat

public static double wtstat(DbIntArray values,
 short[] weights)

Returns the weighted t-statistic. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted t-statistic of non-null values.

wtstat

public static double wtstat(int[] values,
 short[] weights)

Returns the weighted t-statistic. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted t-statistic of non-null values.

wtstat

public static double wtstat(DbIntArray values,
 DbShortArray weights)

Returns the weighted t-statistic. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted t-statistic of non-null values.

wtstat

public static double wtstat(int[] values,
 DbLongArray weights)

Returns the weighted t-statistic. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted t-statistic of non-null values.

wtstat

public static double wtstat(DbIntArray values,
 long[] weights)

Returns the weighted t-statistic. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted t-statistic of non-null values.

wtstat

public static double wtstat(int[] values,
 long[] weights)

Returns the weighted t-statistic. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted t-statistic of non-null values.

wtstat

public static double wtstat(DbIntArray values,
 DbLongArray weights)

Returns the weighted t-statistic. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted t-statistic of non-null values.

max

public static int max(DbIntArray values)

Returns the maximum. Null values are excluded.

Parameters:

values - values.

Returns:

maximum of non-null values.

max

public static int max(int[] values)

Returns the maximum. Null values are excluded.

Parameters:

values - values.

Returns:

maximum of non-null values.

max

public static int max(Integer... values)

Returns the maximum. Null values are excluded.

Parameters:

values - values.

Returns:

maximum of non-null values.

min

public static int min(DbIntArray values)

Returns the minimum. Null values are excluded.

Parameters:

values - values.

Returns:

minimum of non-null values.

min

public static int min(int[] values)

Returns the minimum. Null values are excluded.

Parameters:

values - values.

Returns:

minimum of non-null values.

min

public static int min(Integer... values)

Returns the minimum. Null values are excluded.

Parameters:

values - values.

Returns:

minimum of non-null values.

median

public static double median(Integer... values)

Returns the median.

Parameters:

values - values.

Returns:

median.

median

public static double median(int[] values)

Returns the median.

Parameters:

values - values.

Returns:

median.

median

public static double median(DbIntArray values)

Returns the median.

Parameters:

values - values.

Returns:

median.

percentile

public static double percentile(double percentile,
 int... values)

Returns the percentile.

Parameters:

percentile - percentile to compute.

values - values.

Returns:

percentile.

percentile

public static double percentile(double percentile,
 DbIntArray values)

Returns the percentile.

Parameters:

percentile - percentile to compute.

values - values.

Returns:

percentile.

firstIndexOf

public static int firstIndexOf(int[] values,
 int val)

Returns the first index containing the value.

Parameters:

values - values.

val - value to search for.

Returns:

first index containing the value or null, if the value is not present.

firstIndexOf

public static int firstIndexOf(DbIntArray values,
 int val)

Returns the first index containing the value.

Parameters:

values - values.

val - value to search for.

Returns:

first index containing the value or null, if the value is not present.

indexOfMax

public static int indexOfMax(Integer... values)

Returns the index of the maximum value.

Parameters:

values - values.

Returns:

index of the maximum value.

indexOfMax

public static int indexOfMax(int[] values)

Returns the index of the maximum value.

Parameters:

values - values.

Returns:

index of the maximum value.

indexOfMax

public static int indexOfMax(DbIntArray values)

Returns the index of the maximum value.

Parameters:

values - values.

Returns:

index of the maximum value.

indexOfMin

public static int indexOfMin(Integer... values)

Returns the index of the minimum value.

Parameters:

values - values.

Returns:

index of the minimum value.

indexOfMin

public static int indexOfMin(int[] values)

Returns the index of the minimum value.

Parameters:

values - values.

Returns:

index of the minimum value.

indexOfMin

public static int indexOfMin(DbIntArray values)

Returns the index of the minimum value.

Parameters:

values - values.

Returns:

index of the minimum value.

binSearchIndex

public static int binSearchIndex(int[] values,
 int key,
 BinSearch choiceWhenEquals)

Performs a binary search to find a key.

Parameters:

values - sorted values to search.

key - key to search for.

choiceWhenEquals - algorithm used to resolve ties when performing a binary search.

Returns:

index of the search key, if it is contained in the array; otherwise, the index immediately before where the key would be inserted.

binSearchIndex

public static int binSearchIndex(DbIntArray values,
 int key,
 BinSearch choiceWhenEquals)

Performs a binary search to find a key.

Parameters:

values - sorted values to search.

key - key to search for.

choiceWhenEquals - algorithm used to resolve ties when performing a binary search.

Returns:

index of the search key, if it is contained in the array; otherwise, the index immediately before where the key would be inserted.

rawBinSearchIndex

public static int rawBinSearchIndex(int[] values,
 int key,
 BinSearch choiceWhenEquals)

Performs a binary search to find a key.

Parameters:

values - sorted values to search.

key - key to search for.

choiceWhenEquals - algorithm used to resolve ties when performing a binary search.

Returns:

index of the search key, if it is contained in the array; otherwise, (-(insertion point) - 1).

rawBinSearchIndex

public static int rawBinSearchIndex(DbIntArray values,
 int key,
 BinSearch choiceWhenEquals)

Performs a binary search to find a key.

Parameters:

values - sorted values to search.

key - key to search for.

choiceWhenEquals - algorithm used to resolve ties when performing a binary search.

Returns:

index of the search key, if it is contained in the array; otherwise, (-(insertion point) - 1).

cov

public static double cov(int[] values0,
 DbIntArray values1)

Returns the covariance. Null values are excluded.

Parameters:

values0 - 1st set of values.

values1 - 2nd set of values.

Returns:

covariance of non-null values.

cov

public static double cov(DbIntArray values0,
 int[] values1)

Returns the covariance. Null values are excluded.

Parameters:

values0 - 1st set of values.

values1 - 2nd set of values.

Returns:

covariance of non-null values.

cov

public static double cov(int[] values0,
 int[] values1)

Returns the covariance. Null values are excluded.

Parameters:

values0 - 1st set of values.

values1 - 2nd set of values.

Returns:

covariance of non-null values.

cov

public static double cov(DbIntArray values0,
 DbIntArray values1)

Returns the covariance. Null values are excluded.

Parameters:

values0 - 1st set of values.

values1 - 2nd set of values.

Returns:

covariance of non-null values.

cor

public static double cor(int[] values0,
 DbIntArray values1)

Returns the correlation. Null values are excluded.

Parameters:

values0 - 1st set of values.

values1 - 2nd set of values.

Returns:

correlation of non-null values.

cor

public static double cor(DbIntArray values0,
 int[] values1)

Returns the correlation. Null values are excluded.

Parameters:

values0 - 1st set of values.

values1 - 2nd set of values.

Returns:

correlation of non-null values.

cor

public static double cor(int[] values0,
 int[] values1)

Returns the correlation. Null values are excluded.

Parameters:

values0 - 1st set of values.

values1 - 2nd set of values.

Returns:

correlation of non-null values.

cor

public static double cor(DbIntArray values0,
 DbIntArray values1)

Returns the correlation. Null values are excluded.

Parameters:

values0 - 1st set of values.

values1 - 2nd set of values.

Returns:

correlation of non-null values.

sum

public static int sum(DbIntArray values)

Returns the sum. Null values are excluded.

Parameters:

values - values.

Returns:

sum of non-null values.

sum

public static int sum(int[] values)

Returns the sum. Null values are excluded.

Parameters:

values - values.

Returns:

sum of non-null values.

sum

public static int[] sum(DbArray<int[]> values)

Returns the sum. Null values are excluded.

Parameters:

values - values.

Returns:

array of sums of non-null values.

sum

public static int[] sum(int[]... values)

Returns the sum. Null values are excluded.

Parameters:

values - values.

Returns:

array of sums of non-null values.

product

public static int product(DbIntArray values)

Returns the product. Null values are excluded.

Parameters:

values - values.

Returns:

product of non-null values.

product

public static int product(int[] values)

Returns the product. Null values are excluded.

Parameters:

values - values.

Returns:

product of non-null values.

cumMin

public static int[] cumMin(int... values)

Returns the cumulative minimum. Null values are excluded.

Parameters:

values - values.

Returns:

cumulative sum of non-null values.

cumMax

public static int[] cumMax(int... values)

Returns the cumulative minimum. Null values are excluded.

Parameters:

values - values.

Returns:

cumulative sum of non-null values.

cumsum

public static int[] cumsum(Integer... values)

Returns the cumulative sum. Null values are excluded.

Parameters:

values - values.

Returns:

cumulative sum of non-null values.

cumsum

public static int[] cumsum(int[] values)

Returns the cumulative sum. Null values are excluded.

Parameters:

values - values.

Returns:

cumulative sum of non-null values.

cumsum

public static int[] cumsum(DbIntArray values)

Returns the cumulative sum. Null values are excluded.

Parameters:

values - values.

Returns:

cumulative sum of non-null values.

cumprod

public static int[] cumprod(Integer... values)

Returns the cumulative product. Null values are excluded.

Parameters:

values - values.

Returns:

cumulative product of non-null values.

cumprod

public static int[] cumprod(int[] values)

Returns the cumulative product. Null values are excluded.

Parameters:

values - values.

Returns:

cumulative product of non-null values.

cumprod

public static int[] cumprod(DbIntArray values)

Returns the cumulative product. Null values are excluded.

Parameters:

values - values.

Returns:

cumulative product of non-null values.

abs

public static int abs(int value)

Returns the absolute value.

Parameters:

value - value.

Returns:

absolute value.

acos

public static double acos(int value)

Returns the arc cosine.

Parameters:

value - value.

Returns:

arc cosine.

asin

public static double asin(int value)

Returns the arc sine.

Parameters:

value - value.

Returns:

arc sine.

atan

public static double atan(int value)

Returns the arc tangent.

Parameters:

value - value.

Returns:

arc tangent.

ceil

public static double ceil(int value)

Returns the ceiling. This is the smallest integer, which is greater than or equal to the value.

Parameters:

value - value.

Returns:

ceiling.

cos

public static double cos(int value)

Returns the cosine.

Parameters:

value - value.

Returns:

cosine.

exp

public static double exp(int value)

Returns Euler's number e raised to a power.

Parameters:

value - value.

Returns:

Euler's number e raised to a power.

floor

public static double floor(int value)

Returns the floor. This is the largest integer, which is less than or equal to the value.

Parameters:

value - value.

Returns:

floor.

log

public static double log(int value)

Returns the natural logarithm (base e).

Parameters:

value - value.

Returns:

natural logarithm (base e).

pow

public static double pow(int a,
 int b)

Returns the value of the first argument raised to the second argument.

Parameters:

a - the base.

b - the exponent.

Returns:

a raised to the b power.

rint

public static double rint(int value)

Returns the integer closest to the input value.

Parameters:

value - value.

Returns:

integer closes to the input value.

round

public static long round(int value)

Returns the closest integer to the argument. If the argument is NaN, the result is 0. If the argument is greater than Integer.MIN_VALUE, Integer.MIN_VALUE is returned. If the argument is less than Integer.MAX_VALUE, Integer.MAX_VALUE is returned.

Parameters:

value - value.

signum

public static int signum(int value)

Returns the signum function.

Parameters:

value - value.

Returns:

signum function.

sin

public static double sin(int value)

Returns the sine.

Parameters:

value - value.

Returns:

sine.

sqrt

public static double sqrt(int value)

Returns the square root.

Parameters:

value - value.

Returns:

square root.

tan

public static double tan(int value)

Returns the tangent.

Parameters:

value - value.

Returns:

tangent.

lowerBin

public static int lowerBin(int value,
 int interval)

Returns the lower bound of the bin containing the value.

Parameters:

value - value.

interval - bin width.

Returns:

lower bound of the bin containing the value.

lowerBin

public static int lowerBin(int value,
 int interval,
 int offset)

Returns the lower bound of the bin containing the value.

Parameters:

value - value.

interval - bin width.

offset - interval offset

Returns:

lower bound of the bin containing the value.

upperBin

public static int upperBin(int value,
 int interval)

Returns the upper bound of the bin containing the value.

Parameters:

value - value.

interval - bin width.

Returns:

upper bound of the bin containing the value.

upperBin

public static int upperBin(int value,
 int interval,
 int offset)

Returns the upper bound of the bin containing the value.

Parameters:

value - value.

interval - bin width.

offset - interval offset

Returns:

upper bound of the bin containing the value.

clamp

public static int clamp(int value,
 int min,
 int max)

Constrains the value to be on the [min,max] range. If the value is less than min, min is returned. If the value is greater than max, max is returned.

Parameters:

value - value.

min - minimum value.

max - maximum value.

Returns:

value constrained to be in the [min,max] range.

wsum

public static double wsum(int[] values,
 DbIntArray weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

wsum

public static double wsum(DbIntArray values,
 int[] weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

wsum

public static double wsum(int[] values,
 int[] weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

wsum

public static double wsum(DbIntArray values,
 DbIntArray weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

weightedSum

public static double weightedSum(int[] values,
 DbIntArray weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

weightedSum

public static double weightedSum(DbIntArray values,
 int[] weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

weightedSum

public static double weightedSum(int[] values,
 int[] weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

weightedSum

public static double weightedSum(DbIntArray values,
 DbIntArray weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

wsum

public static double wsum(int[] values,
 DbLongArray weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

wsum

public static double wsum(DbIntArray values,
 long[] weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

wsum

public static double wsum(int[] values,
 long[] weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

wsum

public static double wsum(DbIntArray values,
 DbLongArray weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

weightedSum

public static double weightedSum(int[] values,
 DbLongArray weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

weightedSum

public static double weightedSum(DbIntArray values,
 long[] weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

weightedSum

public static double weightedSum(int[] values,
 long[] weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

weightedSum

public static double weightedSum(DbIntArray values,
 DbLongArray weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

wsum

public static double wsum(int[] values,
 double[] weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

wsum

public static double wsum(DbIntArray values,
 double[] weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

wsum

public static double wsum(int[] values,
 DbDoubleArray weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

wsum

public static double wsum(DbIntArray values,
 DbDoubleArray weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

weightedSum

public static double weightedSum(int[] values,
 DbDoubleArray weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

weightedSum

public static double weightedSum(DbIntArray values,
 double[] weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

weightedSum

public static double weightedSum(int[] values,
 double[] weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

weightedSum

public static double weightedSum(DbIntArray values,
 DbDoubleArray weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

wsum

public static double wsum(int[] values,
 float[] weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

wsum

public static double wsum(DbIntArray values,
 float[] weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

wsum

public static double wsum(int[] values,
 DbFloatArray weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

wsum

public static double wsum(DbIntArray values,
 DbFloatArray weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

weightedSum

public static double weightedSum(int[] values,
 DbFloatArray weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

weightedSum

public static double weightedSum(DbIntArray values,
 float[] weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

weightedSum

public static double weightedSum(int[] values,
 float[] weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

weightedSum

public static double weightedSum(DbIntArray values,
 DbFloatArray weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

wsum

public static double wsum(int[] values,
 DbShortArray weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

wsum

public static double wsum(DbIntArray values,
 short[] weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

wsum

public static double wsum(int[] values,
 short[] weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

wsum

public static double wsum(DbIntArray values,
 DbShortArray weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

weightedSum

public static double weightedSum(int[] values,
 DbShortArray weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

weightedSum

public static double weightedSum(DbIntArray values,
 short[] weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

weightedSum

public static double weightedSum(int[] values,
 short[] weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

weightedSum

public static double weightedSum(DbIntArray values,
 DbShortArray weights)

Returns the weighted sum. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted sum of non-null values.

wavg

public static double wavg(int[] values,
 DbDoubleArray weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

wavg

public static double wavg(DbIntArray values,
 double[] weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

wavg

public static double wavg(int[] values,
 double[] weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

wavg

public static double wavg(DbIntArray values,
 DbDoubleArray weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

weightedAvg

public static double weightedAvg(int[] values,
 DbDoubleArray weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

weightedAvg

public static double weightedAvg(DbIntArray values,
 double[] weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

weightedAvg

public static double weightedAvg(int[] values,
 double[] weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

weightedAvg

public static double weightedAvg(DbIntArray values,
 DbDoubleArray weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

wavg

public static double wavg(int[] values,
 DbFloatArray weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

wavg

public static double wavg(DbIntArray values,
 float[] weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

wavg

public static double wavg(int[] values,
 float[] weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

wavg

public static double wavg(DbIntArray values,
 DbFloatArray weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

weightedAvg

public static double weightedAvg(int[] values,
 DbFloatArray weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

weightedAvg

public static double weightedAvg(DbIntArray values,
 float[] weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

weightedAvg

public static double weightedAvg(int[] values,
 float[] weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

weightedAvg

public static double weightedAvg(DbIntArray values,
 DbFloatArray weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

wavg

public static double wavg(int[] values,
 DbLongArray weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

wavg

public static double wavg(DbIntArray values,
 long[] weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

wavg

public static double wavg(int[] values,
 long[] weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

wavg

public static double wavg(DbIntArray values,
 DbLongArray weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

weightedAvg

public static double weightedAvg(int[] values,
 DbLongArray weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

weightedAvg

public static double weightedAvg(DbIntArray values,
 long[] weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

weightedAvg

public static double weightedAvg(int[] values,
 long[] weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

weightedAvg

public static double weightedAvg(DbIntArray values,
 DbLongArray weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

wavg

public static double wavg(int[] values,
 DbIntArray weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

wavg

public static double wavg(DbIntArray values,
 int[] weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

wavg

public static double wavg(int[] values,
 int[] weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

wavg

public static double wavg(DbIntArray values,
 DbIntArray weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

weightedAvg

public static double weightedAvg(int[] values,
 DbIntArray weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

weightedAvg

public static double weightedAvg(DbIntArray values,
 int[] weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

weightedAvg

public static double weightedAvg(int[] values,
 int[] weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

weightedAvg

public static double weightedAvg(DbIntArray values,
 DbIntArray weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

wavg

public static double wavg(int[] values,
 DbShortArray weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

wavg

public static double wavg(DbIntArray values,
 short[] weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

wavg

public static double wavg(int[] values,
 short[] weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

wavg

public static double wavg(DbIntArray values,
 DbShortArray weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

weightedAvg

public static double weightedAvg(int[] values,
 DbShortArray weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

weightedAvg

public static double weightedAvg(DbIntArray values,
 short[] weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

weightedAvg

public static double weightedAvg(int[] values,
 short[] weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

weightedAvg

public static double weightedAvg(DbIntArray values,
 DbShortArray weights)

Returns the weighted average. Null values are excluded.

Parameters:

values - values.

weights - weights

Returns:

weighted average of non-null values.

sort

public static DbIntArray sort(DbIntArray values)

Returns sorted values from smallest to largest.

Parameters:

values - values.

Returns:

sorted values.

sort

public static int[] sort(int[] values)

Returns sorted values from smallest to largest.

Parameters:

values - values.

Returns:

sorted values.

sort

public static int[] sort(Integer... values)

Returns sorted values from smallest to largest.

Parameters:

values - values.

Returns:

sorted values.

sortDescending

public static DbIntArray sortDescending(DbIntArray values)

Returns sorted values from largest to smallest.

Parameters:

values - values.

Returns:

sorted values.

sortDescending

public static int[] sortDescending(int[] values)

Returns sorted values from largest to smallest.

Parameters:

values - values.

Returns:

sorted values.

sortDescending

public static int[] sortDescending(Integer... values)

Returns sorted values from largest to smallest.

Parameters:

values - values.

Returns:

sorted values.

sequence

public static int[] sequence(int start,
 int end,
 int step)

Returns a sequence of values.

Parameters:

start - starting value.

end - terminal value.

step - step size.

Returns:

sequence of values from start to end.