ArrayMath

java.lang.Object
- icy.math.ArrayMath

```
public class ArrayMath
extends java.lang.Object
```
Class defining basic arithmetic and statistic operations on 1D double arrays.

Author:

Alexandre Dufour & Stephane

Constructor Summary

Constructors
Constructor and Description

ArrayMath()

Constructors
Constructor and Description
`ArrayMath()`

Method Summary

Methods
Modifier and Type	Method and Description
`static byte[]`	`abs(byte[] input, boolean overwrite)` Computes the absolute value of each value of the given byte array
`static double[]`	`abs(double[] input, boolean overwrite)` Computes the absolute value of each value of the given double array
`static float[]`	`abs(float[] input, boolean overwrite)` Computes the absolute value of each value of the given float array
`static int[]`	`abs(int[] input, boolean overwrite)` Computes the absolute value of each value of the given int array
`static long[]`	`abs(long[] input, boolean overwrite)` Computes the absolute value of each value of the given long array
`static java.lang.Object`	`abs(java.lang.Object array, boolean overwrite)` Computes the absolute value of each value of the given array
`static short[]`	`abs(short[] input, boolean overwrite)` Computes the absolute value of each value of the given short array
`static byte[]`	`add(byte[] array, byte value)` Adds a value to all elements of the given byte array
`static byte[]`	`add(byte[] a1, byte[] a2)` Element-wise addition of two byte arrays
`static byte[]`	`add(byte[] a1, byte[] a2, byte[] out)` Element-wise addition of two byte arrays (result in output if defined)
`static byte[]`	`add(byte[] array, byte value, byte[] out)` Adds a value to all elements of the given byte array
`static double[]`	`add(double[] array, double value)` Adds a value to all elements of the given double array
`static double[]`	`add(double[] a1, double[] a2)` Element-wise addition of two double arrays
`static double[]`	`add(double[] a1, double[] a2, double[] out)` Element-wise addition of two double arrays (result in output if defined)
`static double[]`	`add(double[] array, double value, double[] out)` Adds a value to all elements of the given double array
`static double[]`	`add(double value, double[] array, double[] out)` Deprecated. use `add(double[] , double , double[])` instead
`static float[]`	`add(float[] array, float value)` Adds a value to all elements of the float given array
`static float[]`	`add(float[] a1, float[] a2)` Element-wise addition of two float arrays
`static float[]`	`add(float[] a1, float[] a2, float[] out)` Element-wise addition of two float arrays (result in output if defined)
`static float[]`	`add(float[] array, float value, float[] out)` Adds a value to all elements of the given float array
`static int[]`	`add(int[] array, int value)` Adds a value to all elements of the given int array
`static int[]`	`add(int[] a1, int[] a2)` Element-wise addition of two int arrays
`static int[]`	`add(int[] a1, int[] a2, int[] out)` Element-wise addition of two int arrays (result in output if defined)
`static int[]`	`add(int[] array, int value, int[] out)` Adds a value to all elements of the given int array
`static long[]`	`add(long[] array, long value)` Adds a value to all elements of the given long array
`static long[]`	`add(long[] a1, long[] a2)` Element-wise addition of two long arrays
`static long[]`	`add(long[] a1, long[] a2, long[] out)` Element-wise addition of two long arrays (result in output if defined)
`static long[]`	`add(long[] array, long value, long[] out)` Adds a value to all elements of the given long array
`static java.lang.Object`	`add(java.lang.Object array, java.lang.Number value)` Adds a value to all elements of the given array
`static java.lang.Object`	`add(java.lang.Object array, java.lang.Number value, java.lang.Object out)` Adds a value to all elements of the given array
`static java.lang.Object`	`add(java.lang.Object a1, java.lang.Object a2)` Element-wise addition of two arrays
`static java.lang.Object`	`add(java.lang.Object a1, java.lang.Object a2, java.lang.Object out)` Element-wise addition of two arrays
`static short[]`	`add(short[] array, short value)` Adds a value to all elements of the given short array
`static short[]`	`add(short[] a1, short[] a2)` Element-wise addition of two short arrays
`static short[]`	`add(short[] a1, short[] a2, short[] out)` Element-wise addition of two short arrays (result in output if defined)
`static short[]`	`add(short[] array, short value, short[] out)` Adds a value to all elements of the given short array
`static double`	`correlation(double[] a, double[] b)` Computes the classical correlation coefficient between 2 populations.
`static double`	`correlationPearson(double[] a, double[] b)` Computes the Pearson correlation coefficient between two populations of same size N.
`static byte[]`	`divide(byte[] array, byte value)` Divides a value to all elements of the given byte array
`static byte[]`	`divide(byte[] a1, byte[] a2)` Element-wise division of two byte arrays
`static byte[]`	`divide(byte[] a1, byte[] a2, byte[] out)` Element-wise division of two byte arrays (result in output if defined)
`static byte[]`	`divide(byte[] array, byte value, byte[] out)` Divides a value to all elements of the given byte array
`static byte[]`	`divide(byte value, byte[] array)` Divides a value by all elements of the given byte array
`static byte[]`	`divide(byte value, byte[] array, byte[] out)` Divides a value by all elements of the given byte array
`static double[]`	`divide(double[] array, double value)` Divides a value to all elements of the given double array
`static double[]`	`divide(double[] a1, double[] a2)` Element-wise division of two double arrays
`static double[]`	`divide(double[] a1, double[] a2, double[] out)` Element-wise division of two double arrays (result in output if defined)
`static double[]`	`divide(double[] array, double value, double[] out)` Divides a value to all elements of the given double array
`static double[]`	`divide(double value, double[] array)` Divides a value by all elements of the given double array
`static double[]`	`divide(double value, double[] array, double[] out)` Subtracts a value by all elements of the given double array
`static float[]`	`divide(float[] array, float value)` Divides a value to all elements of the float given array
`static float[]`	`divide(float[] a1, float[] a2)` Element-wise division of two float arrays
`static float[]`	`divide(float[] a1, float[] a2, float[] out)` Element-wise division of two float arrays (result in output if defined)
`static float[]`	`divide(float[] array, float value, float[] out)` Divides a value to all elements of the given float array
`static float[]`	`divide(float value, float[] array)` Divides a value by all elements of the float given array
`static float[]`	`divide(float value, float[] array, float[] out)` Divides a value by all elements of the given float array
`static int[]`	`divide(int[] array, int value)` Divides a value to all elements of the given int array
`static int[]`	`divide(int[] a1, int[] a2)` Element-wise division of two int arrays
`static int[]`	`divide(int[] a1, int[] a2, int[] out)` Element-wise division of two int arrays (result in output if defined)
`static int[]`	`divide(int[] array, int value, int[] out)` Divides a value to all elements of the given int array
`static int[]`	`divide(int value, int[] array)` Divides a value by all elements of the given int array
`static int[]`	`divide(int value, int[] array, int[] out)` Divides a value by all elements of the given int array
`static long[]`	`divide(long[] array, long value)` Divides a value to all elements of the given long array
`static long[]`	`divide(long[] a1, long[] a2)` Element-wise division of two long arrays
`static long[]`	`divide(long[] a1, long[] a2, long[] out)` Element-wise division of two long arrays (result in output if defined)
`static long[]`	`divide(long[] array, long value, long[] out)` Divides a value to all elements of the given long array
`static long[]`	`divide(long value, long[] array)` Divides a value by all elements of the given long array
`static long[]`	`divide(long value, long[] array, long[] out)` Divides a value by all elements of the given long array
`static java.lang.Object`	`divide(java.lang.Number value, java.lang.Object array)` Divides a value by all elements of the given array
`static java.lang.Object`	`divide(java.lang.Number value, java.lang.Object array, java.lang.Object out)` Divides a value by all elements of the given array
`static java.lang.Object`	`divide(java.lang.Object array, java.lang.Number value)` Divides a value to all elements of the given array
`static java.lang.Object`	`divide(java.lang.Object array, java.lang.Number value, java.lang.Object out)` Divides a value to all elements of the given array
`static java.lang.Object`	`divide(java.lang.Object a1, java.lang.Object a2)` Element-wise division of two arrays
`static java.lang.Object`	`divide(java.lang.Object a1, java.lang.Object a2, java.lang.Object out)` Element-wise division of two arrays
`static short[]`	`divide(short[] array, short value)` Divides a value to all elements of the given short array
`static short[]`	`divide(short[] a1, short[] a2)` Element-wise division of two short arrays
`static short[]`	`divide(short[] a1, short[] a2, short[] out)` Element-wise division of two short arrays (result in output if defined)
`static short[]`	`divide(short[] array, short value, short[] out)` Divides a value to all elements of the given short array
`static short[]`	`divide(short value, short[] array)` Divides a value by all elements of the given short array
`static short[]`	`divide(short value, short[] array, short[] out)` Divides a value by all elements of the given short array
`static double`	`mad(double[] input, boolean normalPopulation)` Computes the Maximum Absolute Deviation aka MAD of the given array
`static int`	`max(byte[] array, boolean signed)` Find the maximum value of an array
`static double`	`max(double[] array)` Find the maximum value of an array
`static double[]`	`max(double[] a1, double[] a2)` Element-wise maximum of two arrays
`static void`	`max(double[] a1, double[] a2, double[] output)` Element-wise maximum of two arrays
`static float`	`max(float[] array)` Find the maximum value of an array
`static long`	`max(int[] array, boolean signed)` Find the maximum value of an array
`static long`	`max(long[] array, boolean signed)` Find the maximum value of an array
`static double`	`max(java.lang.Object array, boolean signed)` Find the maximum value of a generic array
`static int`	`max(short[] array, boolean signed)` Find the maximum value of an array
`static double`	`mean(double[] input)` Computes the mean value of the given array
`static double`	`median(double[] input, boolean preserveData)` Reorders the given array to compute its median value
`static int`	`min(byte[] array, boolean signed)` Find the minimum value of an array
`static double`	`min(double[] array)` Find the minimum value of an array
`static double[]`	`min(double[] a1, double[] a2)` Element-wise minimum of two arrays
`static void`	`min(double[] a1, double[] a2, double[] output)` Element-wise minimum of two arrays
`static float`	`min(float[] array)` Find the minimum value of an array
`static long`	`min(int[] array, boolean signed)` Find the minimum value of an array
`static long`	`min(long[] array, boolean signed)` Find the minimum value of an array
`static double`	`min(java.lang.Object array, boolean signed)` Find the minimum value of a generic array
`static int`	`min(short[] array, boolean signed)` Find the minimum value of an array
`static byte[]`	`multiply(byte[] array, byte value)` Multiplies a value to all elements of the given byte array
`static byte[]`	`multiply(byte[] a1, byte[] a2)` Element-wise multiplication of two byte arrays
`static byte[]`	`multiply(byte[] a1, byte[] a2, byte[] out)` Element-wise multiplication of two byte arrays (result in output if defined)
`static byte[]`	`multiply(byte[] array, byte value, byte[] out)` Multiplies a value to all elements of the given byte array
`static double[]`	`multiply(double[] array, double value)` Multiplies a value to all elements of the given double array
`static double[]`	`multiply(double[] a1, double[] a2)` Element-wise multiplication of two double arrays
`static double[]`	`multiply(double[] a1, double[] a2, double[] out)` Element-wise multiplication of two double arrays (result in output if defined)
`static double[]`	`multiply(double[] array, double value, double[] out)` Multiplies a value to all elements of the given double array
`static double[]`	`multiply(double value, double[] array, double[] out)` Deprecated. use `multiply(double[] , double , double[])` instead
`static float[]`	`multiply(float[] array, float value)` Multiplies a value to all elements of the float given array
`static float[]`	`multiply(float[] a1, float[] a2)` Element-wise multiplication of two float arrays
`static float[]`	`multiply(float[] a1, float[] a2, float[] out)` Element-wise multiplication of two float arrays (result in output if defined)
`static float[]`	`multiply(float[] array, float value, float[] out)` Multiplies a value to all elements of the given float array
`static int[]`	`multiply(int[] array, int value)` Multiplies a value to all elements of the given int array
`static int[]`	`multiply(int[] a1, int[] a2)` Element-wise multiplication of two int arrays
`static int[]`	`multiply(int[] a1, int[] a2, int[] out)` Element-wise multiplication of two int arrays (result in output if defined)
`static int[]`	`multiply(int[] array, int value, int[] out)` Multiplies a value to all elements of the given int array
`static long[]`	`multiply(long[] array, long value)` Multiplies a value to all elements of the given long array
`static long[]`	`multiply(long[] a1, long[] a2)` Element-wise multiplication of two long arrays
`static long[]`	`multiply(long[] a1, long[] a2, long[] out)` Element-wise multiplication of two long arrays (result in output if defined)
`static long[]`	`multiply(long[] array, long value, long[] out)` Multiplies a value to all elements of the given long array
`static java.lang.Object`	`multiply(java.lang.Object array, java.lang.Number value)` Multiplies a value to all elements of the given array
`static java.lang.Object`	`multiply(java.lang.Object array, java.lang.Number value, java.lang.Object out)` Multiplies a value to all elements of the given array
`static java.lang.Object`	`multiply(java.lang.Object a1, java.lang.Object a2)` Element-wise multiplication of two arrays
`static java.lang.Object`	`multiply(java.lang.Object a1, java.lang.Object a2, java.lang.Object out)` Element-wise multiplication of two arrays
`static short[]`	`multiply(short[] array, short value)` Multiplies a value to all elements of the given short array
`static short[]`	`multiply(short[] a1, short[] a2)` Element-wise multiplication of two short arrays
`static short[]`	`multiply(short[] a1, short[] a2, short[] out)` Element-wise multiplication of two short arrays (result in output if defined)
`static short[]`	`multiply(short[] array, short value, short[] out)` Multiplies a value to all elements of the given short array
`static double[]`	`rescale(double[] input, double newMin, double newMax, boolean overwrite)` Rescales the given array to [newMin,newMax].
`static double`	`select(int k, double[] data)` (routine ported from 'Numerical Recipes in C 2nd ed.')
`static double[]`	`standardize(double[] input, boolean overwrite)` Standardize the input data by subtracting the mean value and dividing by the standard deviation
`static double`	`std(double[] input, boolean unbiased)` Computes the standard deviation of the given array (the variance square root)
`static byte[]`	`subtract(byte[] array, byte value)` Subtracts a value to all elements of the given byte array
`static byte[]`	`subtract(byte[] a1, byte[] a2)` Element-wise subtraction of two byte arrays
`static byte[]`	`subtract(byte[] a1, byte[] a2, byte[] out)` Element-wise subtraction of two byte arrays (result in output if defined)
`static byte[]`	`subtract(byte[] array, byte value, byte[] out)` Subtracts a value to all elements of the given byte array
`static byte[]`	`subtract(byte value, byte[] array)` Subtracts a value by all elements of the given byte array
`static byte[]`	`subtract(byte value, byte[] array, byte[] out)` Subtracts a value by all elements of the given byte array
`static double[]`	`subtract(double[] array, double value)` Subtracts a value to all elements of the given double array
`static double[]`	`subtract(double[] a1, double[] a2)` Element-wise subtraction of two double arrays
`static double[]`	`subtract(double[] a1, double[] a2, double[] out)` Element-wise subtraction of two double arrays (result in output if defined)
`static double[]`	`subtract(double[] array, double value, double[] out)` Subtracts a value to all elements of the given double array
`static double[]`	`subtract(double value, double[] array)` Subtracts a value by all elements of the given double array
`static double[]`	`subtract(double value, double[] array, double[] out)` Subtracts a value by all elements of the given double array
`static float[]`	`subtract(float[] array, float value)` Subtracts a value to all elements of the float given array
`static float[]`	`subtract(float[] a1, float[] a2)` Element-wise subtraction of two float arrays
`static float[]`	`subtract(float[] a1, float[] a2, float[] out)` Element-wise subtraction of two float arrays (result in output if defined)
`static float[]`	`subtract(float[] array, float value, float[] out)` Subtracts a value to all elements of the given float array
`static float[]`	`subtract(float value, float[] array)` Subtracts a value by all elements of the float given array
`static float[]`	`subtract(float value, float[] array, float[] out)` Subtracts a value by all elements of the given float array
`static int[]`	`subtract(int[] array, int value)` Subtracts a value to all elements of the given int array
`static int[]`	`subtract(int[] a1, int[] a2)` Element-wise subtraction of two int arrays
`static int[]`	`subtract(int[] a1, int[] a2, int[] out)` Element-wise subtraction of two int arrays (result in output if defined)
`static int[]`	`subtract(int[] array, int value, int[] out)` Subtracts a value to all elements of the given int array
`static int[]`	`subtract(int value, int[] array)` Subtracts a value by all elements of the given int array
`static int[]`	`subtract(int value, int[] array, int[] out)` Subtracts a value by all elements of the given int array
`static long[]`	`subtract(long[] array, long value)` Subtracts a value to all elements of the given long array
`static long[]`	`subtract(long[] a1, long[] a2)` Element-wise subtraction of two long arrays
`static long[]`	`subtract(long[] a1, long[] a2, long[] out)` Element-wise subtraction of two long arrays (result in output if defined)
`static long[]`	`subtract(long[] array, long value, long[] out)` Subtracts a value to all elements of the given long array
`static long[]`	`subtract(long value, long[] array)` Subtracts a value by all elements of the given long array
`static long[]`	`subtract(long value, long[] array, long[] out)` Subtracts a value by all elements of the given long array
`static java.lang.Object`	`subtract(java.lang.Number value, java.lang.Object array)` Subtracts a value by all elements of the given array
`static java.lang.Object`	`subtract(java.lang.Number value, java.lang.Object array, java.lang.Object out)` Subtracts a value by all elements of the given array
`static java.lang.Object`	`subtract(java.lang.Object array, java.lang.Number value)` Subtracts a value to all elements of the given array
`static java.lang.Object`	`subtract(java.lang.Object array, java.lang.Number value, java.lang.Object out)` Subtracts a value to all elements of the given array
`static java.lang.Object`	`subtract(java.lang.Object a1, java.lang.Object a2)` Element-wise subtraction of two arrays
`static java.lang.Object`	`subtract(java.lang.Object a1, java.lang.Object a2, java.lang.Object out)` Element-wise subtraction of two arrays
`static short[]`	`subtract(short[] array, short value)` Subtracts a value to all elements of the given short array
`static short[]`	`subtract(short[] a1, short[] a2)` Element-wise subtraction of two short arrays
`static short[]`	`subtract(short[] a1, short[] a2, short[] out)` Element-wise subtraction of two short arrays (result in output if defined)
`static short[]`	`subtract(short[] array, short value, short[] out)` Subtracts a value to all elements of the given short array
`static short[]`	`subtract(short value, short[] array)` Subtracts a value by all elements of the given short array
`static short[]`	`subtract(short value, short[] array, short[] out)` Subtracts a value by all elements of the given short array
`static double`	`sum(byte[] input, boolean signed)` Computes the sum of all values in the input array
`static double`	`sum(double[] input)` Computes the sum of all values in the input array
`static double`	`sum(float[] input)` Computes the sum of all values in the input array
`static double`	`sum(int[] input, boolean signed)` Computes the sum of all values in the input array
`static double`	`sum(long[] input, boolean signed)` Computes the sum of all values in the input array
`static double`	`sum(java.lang.Object array, boolean signed)` Computes the sum of all values from the specified input array.
`static double`	`sum(short[] input, boolean signed)` Computes the sum of all values in the input array
`static double`	`var(double[] input, boolean unbiased)` Computes the unbiased variance of the given array

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ArrayMath
```
public ArrayMath()
```
- Method Detail
  - add
```
public static java.lang.Object add(java.lang.Object a1,
                   java.lang.Object a2,
                   java.lang.Object out)
```
    Element-wise addition of two arrays
    
    Parameters:
    out - the array receiving the result
  - add
```
public static java.lang.Object add(java.lang.Object a1,
                   java.lang.Object a2)
```
    Element-wise addition of two arrays
  - add
```
public static double[] add(double[] a1,
           double[] a2,
           double[] out)
```
    Element-wise addition of two double arrays (result in output if defined)
    
    Parameters:
    out - the array receiving the result
  - add
```
public static double[] add(double[] a1,
           double[] a2)
```
    Element-wise addition of two double arrays
  - add
```
public static float[] add(float[] a1,
          float[] a2,
          float[] out)
```
    Element-wise addition of two float arrays (result in output if defined)
    
    Parameters:
    out - the array receiving the result
  - add
```
public static float[] add(float[] a1,
          float[] a2)
```
    Element-wise addition of two float arrays
  - add
```
public static long[] add(long[] a1,
         long[] a2,
         long[] out)
```
    Element-wise addition of two long arrays (result in output if defined)
    
    Parameters:
    out - the array receiving the result
  - add
```
public static long[] add(long[] a1,
         long[] a2)
```
    Element-wise addition of two long arrays
  - add
```
public static int[] add(int[] a1,
        int[] a2,
        int[] out)
```
    Element-wise addition of two int arrays (result in output if defined)
    
    Parameters:
    out - the array receiving the result
  - add
```
public static int[] add(int[] a1,
        int[] a2)
```
    Element-wise addition of two int arrays
  - add
```
public static short[] add(short[] a1,
          short[] a2,
          short[] out)
```
    Element-wise addition of two short arrays (result in output if defined)
    
    Parameters:
    out - the array receiving the result
  - add
```
public static short[] add(short[] a1,
          short[] a2)
```
    Element-wise addition of two short arrays
  - add
```
public static byte[] add(byte[] a1,
         byte[] a2,
         byte[] out)
```
    Element-wise addition of two byte arrays (result in output if defined)
    
    Parameters:
    out - the array receiving the result
  - add
```
public static byte[] add(byte[] a1,
         byte[] a2)
```
    Element-wise addition of two byte arrays
  - add
```
public static java.lang.Object add(java.lang.Object array,
                   java.lang.Number value,
                   java.lang.Object out)
```
    Adds a value to all elements of the given array
    
    Parameters:
    out - the array receiving the result
  - add
```
public static java.lang.Object add(java.lang.Object array,
                   java.lang.Number value)
```
    Adds a value to all elements of the given array
  - add
```
public static double[] add(double[] array,
           double value,
           double[] out)
```
    Adds a value to all elements of the given double array
    
    Parameters:
    out - the array receiving the result
  - add
```
@Deprecated
public static double[] add(double value,
                      double[] array,
                      double[] out)
```
    Deprecated. use add(double[] , double , double[]) instead
  - add
```
public static double[] add(double[] array,
           double value)
```
    Adds a value to all elements of the given double array
  - add
```
public static float[] add(float[] array,
          float value,
          float[] out)
```
    Adds a value to all elements of the given float array
    
    Parameters:
    out - the array receiving the result
  - add
```
public static float[] add(float[] array,
          float value)
```
    Adds a value to all elements of the float given array
  - add
```
public static long[] add(long[] array,
         long value,
         long[] out)
```
    Adds a value to all elements of the given long array
    
    Parameters:
    out - the array receiving the result
  - add
```
public static long[] add(long[] array,
         long value)
```
    Adds a value to all elements of the given long array
  - add
```
public static int[] add(int[] array,
        int value,
        int[] out)
```
    Adds a value to all elements of the given int array
    
    Parameters:
    out - the array receiving the result
  - add
```
public static int[] add(int[] array,
        int value)
```
    Adds a value to all elements of the given int array
  - add
```
public static short[] add(short[] array,
          short value,
          short[] out)
```
    Adds a value to all elements of the given short array
    
    Parameters:
    out - the array receiving the result
  - add
```
public static short[] add(short[] array,
          short value)
```
    Adds a value to all elements of the given short array
  - add
```
public static byte[] add(byte[] array,
         byte value,
         byte[] out)
```
    Adds a value to all elements of the given byte array
    
    Parameters:
    out - the array receiving the result
  - add
```
public static byte[] add(byte[] array,
         byte value)
```
    Adds a value to all elements of the given byte array
  - subtract
```
public static java.lang.Object subtract(java.lang.Object a1,
                        java.lang.Object a2,
                        java.lang.Object out)
```
    Element-wise subtraction of two arrays
    
    Parameters:
    out - the array receiving the result
  - subtract
```
public static java.lang.Object subtract(java.lang.Object a1,
                        java.lang.Object a2)
```
    Element-wise subtraction of two arrays
  - subtract
```
public static double[] subtract(double[] a1,
                double[] a2,
                double[] out)
```
    Element-wise subtraction of two double arrays (result in output if defined)
    
    Parameters:
    out - the array receiving the result
  - subtract
```
public static double[] subtract(double[] a1,
                double[] a2)
```
    Element-wise subtraction of two double arrays
  - subtract
```
public static float[] subtract(float[] a1,
               float[] a2,
               float[] out)
```
    Element-wise subtraction of two float arrays (result in output if defined)
    
    Parameters:
    out - the array receiving the result
  - subtract
```
public static float[] subtract(float[] a1,
               float[] a2)
```
    Element-wise subtraction of two float arrays
  - subtract
```
public static long[] subtract(long[] a1,
              long[] a2,
              long[] out)
```
    Element-wise subtraction of two long arrays (result in output if defined)
    
    Parameters:
    out - the array receiving the result
  - subtract
```
public static long[] subtract(long[] a1,
              long[] a2)
```
    Element-wise subtraction of two long arrays
  - subtract
```
public static int[] subtract(int[] a1,
             int[] a2,
             int[] out)
```
    Element-wise subtraction of two int arrays (result in output if defined)
    
    Parameters:
    out - the array receiving the result
  - subtract
```
public static int[] subtract(int[] a1,
             int[] a2)
```
    Element-wise subtraction of two int arrays
  - subtract
```
public static short[] subtract(short[] a1,
               short[] a2,
               short[] out)
```
    Element-wise subtraction of two short arrays (result in output if defined)
    
    Parameters:
    out - the array receiving the result
  - subtract
```
public static short[] subtract(short[] a1,
               short[] a2)
```
    Element-wise subtraction of two short arrays
  - subtract
```
public static byte[] subtract(byte[] a1,
              byte[] a2,
              byte[] out)
```
    Element-wise subtraction of two byte arrays (result in output if defined)
    
    Parameters:
    out - the array receiving the result
  - subtract
```
public static byte[] subtract(byte[] a1,
              byte[] a2)
```
    Element-wise subtraction of two byte arrays
  - subtract
```
public static java.lang.Object subtract(java.lang.Object array,
                        java.lang.Number value,
                        java.lang.Object out)
```
    Subtracts a value to all elements of the given array
    
    Parameters:
    out - the array receiving the result
  - subtract
```
public static java.lang.Object subtract(java.lang.Object array,
                        java.lang.Number value)
```
    Subtracts a value to all elements of the given array
  - subtract
```
public static double[] subtract(double[] array,
                double value,
                double[] out)
```
    Subtracts a value to all elements of the given double array
    
    Parameters:
    out - the array receiving the result
  - subtract
```
public static double[] subtract(double[] array,
                double value)
```
    Subtracts a value to all elements of the given double array
  - subtract
```
public static float[] subtract(float[] array,
               float value,
               float[] out)
```
    Subtracts a value to all elements of the given float array
    
    Parameters:
    out - the array receiving the result
  - subtract
```
public static float[] subtract(float[] array,
               float value)
```
    Subtracts a value to all elements of the float given array
  - subtract
```
public static long[] subtract(long[] array,
              long value,
              long[] out)
```
    Subtracts a value to all elements of the given long array
    
    Parameters:
    out - the array receiving the result
  - subtract
```
public static long[] subtract(long[] array,
              long value)
```
    Subtracts a value to all elements of the given long array
  - subtract
```
public static int[] subtract(int[] array,
             int value,
             int[] out)
```
    Subtracts a value to all elements of the given int array
    
    Parameters:
    out - the array receiving the result
  - subtract
```
public static int[] subtract(int[] array,
             int value)
```
    Subtracts a value to all elements of the given int array
  - subtract
```
public static short[] subtract(short[] array,
               short value,
               short[] out)
```
    Subtracts a value to all elements of the given short array
    
    Parameters:
    out - the array receiving the result
  - subtract
```
public static short[] subtract(short[] array,
               short value)
```
    Subtracts a value to all elements of the given short array
  - subtract
```
public static byte[] subtract(byte[] array,
              byte value,
              byte[] out)
```
    Subtracts a value to all elements of the given byte array
    
    Parameters:
    out - the array receiving the result
  - subtract
```
public static byte[] subtract(byte[] array,
              byte value)
```
    Subtracts a value to all elements of the given byte array
  - subtract
```
public static java.lang.Object subtract(java.lang.Number value,
                        java.lang.Object array,
                        java.lang.Object out)
```
    Subtracts a value by all elements of the given array
    
    Parameters:
    out - the array receiving the result
  - subtract
```
public static java.lang.Object subtract(java.lang.Number value,
                        java.lang.Object array)
```
    Subtracts a value by all elements of the given array
  - subtract
```
public static double[] subtract(double value,
                double[] array,
                double[] out)
```
    Subtracts a value by all elements of the given double array
    
    Parameters:
    out - the array receiving the result
  - subtract
```
public static double[] subtract(double value,
                double[] array)
```
    Subtracts a value by all elements of the given double array
  - subtract
```
public static float[] subtract(float value,
               float[] array,
               float[] out)
```
    Subtracts a value by all elements of the given float array
    
    Parameters:
    out - the array receiving the result
  - subtract
```
public static float[] subtract(float value,
               float[] array)
```
    Subtracts a value by all elements of the float given array
  - subtract
```
public static long[] subtract(long value,
              long[] array,
              long[] out)
```
    Subtracts a value by all elements of the given long array
    
    Parameters:
    out - the array receiving the result
  - subtract
```
public static long[] subtract(long value,
              long[] array)
```
    Subtracts a value by all elements of the given long array
  - subtract
```
public static int[] subtract(int value,
             int[] array,
             int[] out)
```
    Subtracts a value by all elements of the given int array
    
    Parameters:
    out - the array receiving the result
  - subtract
```
public static int[] subtract(int value,
             int[] array)
```
    Subtracts a value by all elements of the given int array
  - subtract
```
public static short[] subtract(short value,
               short[] array,
               short[] out)
```
    Subtracts a value by all elements of the given short array
    
    Parameters:
    out - the array receiving the result
  - subtract
```
public static short[] subtract(short value,
               short[] array)
```
    Subtracts a value by all elements of the given short array
  - subtract
```
public static byte[] subtract(byte value,
              byte[] array,
              byte[] out)
```
    Subtracts a value by all elements of the given byte array
    
    Parameters:
    out - the array receiving the result
  - subtract
```
public static byte[] subtract(byte value,
              byte[] array)
```
    Subtracts a value by all elements of the given byte array
  - multiply
```
public static java.lang.Object multiply(java.lang.Object a1,
                        java.lang.Object a2,
                        java.lang.Object out)
```
    Element-wise multiplication of two arrays
    
    Parameters:
    out - the array receiving the result
  - multiply
```
public static java.lang.Object multiply(java.lang.Object a1,
                        java.lang.Object a2)
```
    Element-wise multiplication of two arrays
  - multiply
```
public static double[] multiply(double[] a1,
                double[] a2,
                double[] out)
```
    Element-wise multiplication of two double arrays (result in output if defined)
    
    Parameters:
    out - the array receiving the result
  - multiply
```
public static double[] multiply(double[] a1,
                double[] a2)
```
    Element-wise multiplication of two double arrays
  - multiply
```
public static float[] multiply(float[] a1,
               float[] a2,
               float[] out)
```
    Element-wise multiplication of two float arrays (result in output if defined)
    
    Parameters:
    out - the array receiving the result
  - multiply
```
public static float[] multiply(float[] a1,
               float[] a2)
```
    Element-wise multiplication of two float arrays
  - multiply
```
public static long[] multiply(long[] a1,
              long[] a2,
              long[] out)
```
    Element-wise multiplication of two long arrays (result in output if defined)
    
    Parameters:
    out - the array receiving the result
  - multiply
```
public static long[] multiply(long[] a1,
              long[] a2)
```
    Element-wise multiplication of two long arrays
  - multiply
```
public static int[] multiply(int[] a1,
             int[] a2,
             int[] out)
```
    Element-wise multiplication of two int arrays (result in output if defined)
    
    Parameters:
    out - the array receiving the result
  - multiply
```
public static int[] multiply(int[] a1,
             int[] a2)
```
    Element-wise multiplication of two int arrays
  - multiply
```
public static short[] multiply(short[] a1,
               short[] a2,
               short[] out)
```
    Element-wise multiplication of two short arrays (result in output if defined)
    
    Parameters:
    out - the array receiving the result
  - multiply
```
public static short[] multiply(short[] a1,
               short[] a2)
```
    Element-wise multiplication of two short arrays
  - multiply
```
public static byte[] multiply(byte[] a1,
              byte[] a2,
              byte[] out)
```
    Element-wise multiplication of two byte arrays (result in output if defined)
    
    Parameters:
    out - the array receiving the result
  - multiply
```
public static byte[] multiply(byte[] a1,
              byte[] a2)
```
    Element-wise multiplication of two byte arrays
  - multiply
```
public static java.lang.Object multiply(java.lang.Object array,
                        java.lang.Number value,
                        java.lang.Object out)
```
    Multiplies a value to all elements of the given array
    
    Parameters:
    out - the array receiving the result
  - multiply
```
public static java.lang.Object multiply(java.lang.Object array,
                        java.lang.Number value)
```
    Multiplies a value to all elements of the given array
  - multiply
```
public static double[] multiply(double[] array,
                double value,
                double[] out)
```
    Multiplies a value to all elements of the given double array
    
    Parameters:
    out - the array receiving the result
  - multiply
```
@Deprecated
public static double[] multiply(double value,
                           double[] array,
                           double[] out)
```
    Deprecated. use multiply(double[] , double , double[]) instead
  - multiply
```
public static double[] multiply(double[] array,
                double value)
```
    Multiplies a value to all elements of the given double array
  - multiply
```
public static float[] multiply(float[] array,
               float value,
               float[] out)
```
    Multiplies a value to all elements of the given float array
    
    Parameters:
    out - the array receiving the result
  - multiply
```
public static float[] multiply(float[] array,
               float value)
```
    Multiplies a value to all elements of the float given array
  - multiply
```
public static long[] multiply(long[] array,
              long value,
              long[] out)
```
    Multiplies a value to all elements of the given long array
    
    Parameters:
    out - the array receiving the result
  - multiply
```
public static long[] multiply(long[] array,
              long value)
```
    Multiplies a value to all elements of the given long array
  - multiply
```
public static int[] multiply(int[] array,
             int value,
             int[] out)
```
    Multiplies a value to all elements of the given int array
    
    Parameters:
    out - the array receiving the result
  - multiply
```
public static int[] multiply(int[] array,
             int value)
```
    Multiplies a value to all elements of the given int array
  - multiply
```
public static short[] multiply(short[] array,
               short value,
               short[] out)
```
    Multiplies a value to all elements of the given short array
    
    Parameters:
    out - the array receiving the result
  - multiply
```
public static short[] multiply(short[] array,
               short value)
```
    Multiplies a value to all elements of the given short array
  - multiply
```
public static byte[] multiply(byte[] array,
              byte value,
              byte[] out)
```
    Multiplies a value to all elements of the given byte array
    
    Parameters:
    out - the array receiving the result
  - multiply
```
public static byte[] multiply(byte[] array,
              byte value)
```
    Multiplies a value to all elements of the given byte array
  - divide
```
public static java.lang.Object divide(java.lang.Object a1,
                      java.lang.Object a2,
                      java.lang.Object out)
```
    Element-wise division of two arrays
    
    Parameters:
    out - the array receiving the result
  - divide
```
public static java.lang.Object divide(java.lang.Object a1,
                      java.lang.Object a2)
```
    Element-wise division of two arrays
  - divide
```
public static double[] divide(double[] a1,
              double[] a2,
              double[] out)
```
    Element-wise division of two double arrays (result in output if defined)
    
    Parameters:
    out - the array receiving the result
  - divide
```
public static double[] divide(double[] a1,
              double[] a2)
```
    Element-wise division of two double arrays
  - divide
```
public static float[] divide(float[] a1,
             float[] a2,
             float[] out)
```
    Element-wise division of two float arrays (result in output if defined)
    
    Parameters:
    out - the array receiving the result
  - divide
```
public static float[] divide(float[] a1,
             float[] a2)
```
    Element-wise division of two float arrays
  - divide
```
public static long[] divide(long[] a1,
            long[] a2,
            long[] out)
```
    Element-wise division of two long arrays (result in output if defined)
    
    Parameters:
    out - the array receiving the result
  - divide
```
public static long[] divide(long[] a1,
            long[] a2)
```
    Element-wise division of two long arrays
  - divide
```
public static int[] divide(int[] a1,
           int[] a2,
           int[] out)
```
    Element-wise division of two int arrays (result in output if defined)
    
    Parameters:
    out - the array receiving the result
  - divide
```
public static int[] divide(int[] a1,
           int[] a2)
```
    Element-wise division of two int arrays
  - divide
```
public static short[] divide(short[] a1,
             short[] a2,
             short[] out)
```
    Element-wise division of two short arrays (result in output if defined)
    
    Parameters:
    out - the array receiving the result
  - divide
```
public static short[] divide(short[] a1,
             short[] a2)
```
    Element-wise division of two short arrays
  - divide
```
public static byte[] divide(byte[] a1,
            byte[] a2,
            byte[] out)
```
    Element-wise division of two byte arrays (result in output if defined)
    
    Parameters:
    out - the array receiving the result
  - divide
```
public static byte[] divide(byte[] a1,
            byte[] a2)
```
    Element-wise division of two byte arrays
  - divide
```
public static java.lang.Object divide(java.lang.Object array,
                      java.lang.Number value,
                      java.lang.Object out)
```
    Divides a value to all elements of the given array
    
    Parameters:
    out - the array receiving the result
  - divide
```
public static java.lang.Object divide(java.lang.Object array,
                      java.lang.Number value)
```
    Divides a value to all elements of the given array
  - divide
```
public static double[] divide(double[] array,
              double value,
              double[] out)
```
    Divides a value to all elements of the given double array
    
    Parameters:
    out - the array receiving the result
  - divide
```
public static double[] divide(double[] array,
              double value)
```
    Divides a value to all elements of the given double array
  - divide
```
public static float[] divide(float[] array,
             float value,
             float[] out)
```
    Divides a value to all elements of the given float array
    
    Parameters:
    out - the array receiving the result
  - divide
```
public static float[] divide(float[] array,
             float value)
```
    Divides a value to all elements of the float given array
  - divide
```
public static long[] divide(long[] array,
            long value,
            long[] out)
```
    Divides a value to all elements of the given long array
    
    Parameters:
    out - the array receiving the result
  - divide
```
public static long[] divide(long[] array,
            long value)
```
    Divides a value to all elements of the given long array
  - divide
```
public static int[] divide(int[] array,
           int value,
           int[] out)
```
    Divides a value to all elements of the given int array
    
    Parameters:
    out - the array receiving the result
  - divide
```
public static int[] divide(int[] array,
           int value)
```
    Divides a value to all elements of the given int array
  - divide
```
public static short[] divide(short[] array,
             short value,
             short[] out)
```
    Divides a value to all elements of the given short array
    
    Parameters:
    out - the array receiving the result
  - divide
```
public static short[] divide(short[] array,
             short value)
```
    Divides a value to all elements of the given short array
  - divide
```
public static byte[] divide(byte[] array,
            byte value,
            byte[] out)
```
    Divides a value to all elements of the given byte array
    
    Parameters:
    out - the array receiving the result
  - divide
```
public static byte[] divide(byte[] array,
            byte value)
```
    Divides a value to all elements of the given byte array
  - divide
```
public static java.lang.Object divide(java.lang.Number value,
                      java.lang.Object array,
                      java.lang.Object out)
```
    Divides a value by all elements of the given array
    
    Parameters:
    out - the array receiving the result
  - divide
```
public static java.lang.Object divide(java.lang.Number value,
                      java.lang.Object array)
```
    Divides a value by all elements of the given array
  - divide
```
public static double[] divide(double value,
              double[] array,
              double[] out)
```
    Subtracts a value by all elements of the given double array
    
    Parameters:
    out - the array receiving the result
  - divide
```
public static double[] divide(double value,
              double[] array)
```
    Divides a value by all elements of the given double array
  - divide
```
public static float[] divide(float value,
             float[] array,
             float[] out)
```
    Divides a value by all elements of the given float array
    
    Parameters:
    out - the array receiving the result
  - divide
```
public static float[] divide(float value,
             float[] array)
```
    Divides a value by all elements of the float given array
  - divide
```
public static long[] divide(long value,
            long[] array,
            long[] out)
```
    Divides a value by all elements of the given long array
    
    Parameters:
    out - the array receiving the result
  - divide
```
public static long[] divide(long value,
            long[] array)
```
    Divides a value by all elements of the given long array
  - divide
```
public static int[] divide(int value,
           int[] array,
           int[] out)
```
    Divides a value by all elements of the given int array
    
    Parameters:
    out - the array receiving the result
  - divide
```
public static int[] divide(int value,
           int[] array)
```
    Divides a value by all elements of the given int array
  - divide
```
public static short[] divide(short value,
             short[] array,
             short[] out)
```
    Divides a value by all elements of the given short array
    
    Parameters:
    out - the array receiving the result
  - divide
```
public static short[] divide(short value,
             short[] array)
```
    Divides a value by all elements of the given short array
  - divide
```
public static byte[] divide(byte value,
            byte[] array,
            byte[] out)
```
    Divides a value by all elements of the given byte array
    
    Parameters:
    out - the array receiving the result
  - divide
```
public static byte[] divide(byte value,
            byte[] array)
```
    Divides a value by all elements of the given byte array
  - abs
```
public static java.lang.Object abs(java.lang.Object array,
                   boolean overwrite)
```
    Computes the absolute value of each value of the given array
    
    Parameters:
    overwrite - true : overwrites the input data
    false: returns the result in a new array
  - abs
```
public static double[] abs(double[] input,
           boolean overwrite)
```
    Computes the absolute value of each value of the given double array
    
    Parameters:
    overwrite - true overwrites the input data, false returns the result in a new structure
  - abs
```
public static float[] abs(float[] input,
          boolean overwrite)
```
    Computes the absolute value of each value of the given float array
    
    Parameters:
    overwrite - true overwrites the input data, false returns the result in a new structure
  - abs
```
public static long[] abs(long[] input,
         boolean overwrite)
```
    Computes the absolute value of each value of the given long array
    
    Parameters:
    overwrite - true overwrites the input data, false returns the result in a new structure
  - abs
```
public static int[] abs(int[] input,
        boolean overwrite)
```
    Computes the absolute value of each value of the given int array
    
    Parameters:
    overwrite - true overwrites the input data, false returns the result in a new structure
  - abs
```
public static short[] abs(short[] input,
          boolean overwrite)
```
    Computes the absolute value of each value of the given short array
    
    Parameters:
    overwrite - true overwrites the input data, false returns the result in a new structure
  - abs
```
public static byte[] abs(byte[] input,
         boolean overwrite)
```
    Computes the absolute value of each value of the given byte array
    
    Parameters:
    overwrite - true overwrites the input data, false returns the result in a new structure
  - min
```
public static double min(java.lang.Object array,
         boolean signed)
```
    Find the minimum value of a generic array
    
    Parameters:
    array - an array
    signed - signed / unsigned flag
    
    Returns:
    the min value of the array
  - min
```
public static int min(byte[] array,
      boolean signed)
```
    Find the minimum value of an array
    
    Parameters:
    array - an array
    signed - signed / unsigned flag
    
    Returns:
    the min value of the array
  - min
```
public static int min(short[] array,
      boolean signed)
```
    Find the minimum value of an array
    
    Parameters:
    array - an array
    signed - signed / unsigned flag
    
    Returns:
    the min value of the array
  - min
```
public static long min(int[] array,
       boolean signed)
```
    Find the minimum value of an array
    
    Parameters:
    array - an array
    signed - signed / unsigned flag
    
    Returns:
    the min value of the array
  - min
```
public static long min(long[] array,
       boolean signed)
```
    Find the minimum value of an array
    
    Parameters:
    array - an array
    signed - signed / unsigned flag
    
    Returns:
    the min value of the array
  - min
```
public static float min(float[] array)
```
    Find the minimum value of an array
    
    Parameters:
    array - an array
    
    Returns:
    the min value of the array
  - min
```
public static double min(double[] array)
```
    Find the minimum value of an array
    
    Parameters:
    array - an array
    
    Returns:
    the min value of the array
  - max
```
public static double max(java.lang.Object array,
         boolean signed)
```
    Find the maximum value of a generic array
    
    Parameters:
    array - an array
    signed - signed / unsigned flag
    
    Returns:
    the max value of the array
  - max
```
public static int max(byte[] array,
      boolean signed)
```
    Find the maximum value of an array
    
    Parameters:
    array - an array
    signed - signed / unsigned flag
    
    Returns:
    the max value of the array
  - max
```
public static int max(short[] array,
      boolean signed)
```
    Find the maximum value of an array
    
    Parameters:
    array - an array
    signed - signed / unsigned flag
    
    Returns:
    the max value of the array
  - max
```
public static long max(int[] array,
       boolean signed)
```
    Find the maximum value of an array
    
    Parameters:
    array - an array
    signed - signed / unsigned flag
    
    Returns:
    the max value of the array
  - max
```
public static long max(long[] array,
       boolean signed)
```
    Find the maximum value of an array
    
    Parameters:
    array - an array
    signed - signed / unsigned flag
    
    Returns:
    the max value of the array
  - max
```
public static float max(float[] array)
```
    Find the maximum value of an array
    
    Parameters:
    array - an array
    
    Returns:
    the max value of the array
  - max
```
public static double max(double[] array)
```
    Find the maximum value of an array
    
    Parameters:
    array - an array
    
    Returns:
    the max value of the array
  - min
```
public static void min(double[] a1,
       double[] a2,
       double[] output)
```
    Element-wise minimum of two arrays
    
    Parameters:
    a1 - =input1
    a2 - =input2
    output - - the array of min values
  - min
```
public static double[] min(double[] a1,
           double[] a2)
```
    Element-wise minimum of two arrays
    
    Parameters:
    a1 - =input1
    a2 - =input2
    
    Returns:
    the array of min values
  - max
```
public static void max(double[] a1,
       double[] a2,
       double[] output)
```
    Element-wise maximum of two arrays
    
    Parameters:
    a1 - =input1
    a2 - =input2
    output - - the array of max values
  - max
```
public static double[] max(double[] a1,
           double[] a2)
```
    Element-wise maximum of two arrays
    
    Parameters:
    a1 - =input1
    a2 - =input2
    
    Returns:
    the array of max values
  - median
```
public static double median(double[] input,
            boolean preserveData)
```
    Reorders the given array to compute its median value
    
    Parameters:
    input -
    preserveData - set to true if the given array should not be changed (a copy will be made)
  - mad
```
public static double mad(double[] input,
         boolean normalPopulation)
```
    Computes the Maximum Absolute Deviation aka MAD of the given array
    
    Parameters:
    input -
    normalPopulation - normalizes the population by 1.4826
  - select
```
public static double select(int k,
            double[] data)
```
    (routine ported from 'Numerical Recipes in C 2nd ed.')
    Computes the k-th smallest value in the input array and rearranges the array such that the wanted value is located at data[k-1], Lower values are stored in arbitrary order in data[0 .. k-2] Higher values will be stored in arbitrary order in data[k .. end]
    
    Parameters:
    k -
    data -
    
    Returns:
    the k-th smallest value in the array
  - sum
```
public static double sum(java.lang.Object array,
         boolean signed)
```
    Computes the sum of all values from the specified input array.
    
    Parameters:
    array - an array
    signed - signed / unsigned flag
    
    Returns:
    the sum of all values from the array
  - sum
```
public static double sum(byte[] input,
         boolean signed)
```
    Computes the sum of all values in the input array
    
    Parameters:
    input - the array to sum up
    signed - signed / unsigned flag
  - sum
```
public static double sum(short[] input,
         boolean signed)
```
    Computes the sum of all values in the input array
    
    Parameters:
    input - the array to sum up
    signed - signed / unsigned flag
  - sum
```
public static double sum(int[] input,
         boolean signed)
```
    Computes the sum of all values in the input array
    
    Parameters:
    input - the array to sum up
    signed - signed / unsigned flag
  - sum
```
public static double sum(long[] input,
         boolean signed)
```
    Computes the sum of all values in the input array
    
    Parameters:
    input - the array to sum up
    signed - signed / unsigned flag
  - sum
```
public static double sum(float[] input)
```
    Computes the sum of all values in the input array
    
    Parameters:
    input - the array to sum up
  - sum
```
public static double sum(double[] input)
```
    Computes the sum of all values in the input array
    
    Parameters:
    input - the array to sum up
  - mean
```
public static double mean(double[] input)
```
    Computes the mean value of the given array
    
    Parameters:
    input -
  - var
```
public static double var(double[] input,
         boolean unbiased)
```
    Computes the unbiased variance of the given array
    
    Parameters:
    input -
    unbiased - set to true if the result should be normalized by the population size minus 1
  - std
```
public static double std(double[] input,
         boolean unbiased)
```
    Computes the standard deviation of the given array (the variance square root)
    
    Parameters:
    input -
    unbiased - set to true if the variance should be unbiased
    
    Returns:
    the square root of the variance
  - rescale
```
public static double[] rescale(double[] input,
               double newMin,
               double newMax,
               boolean overwrite)
```
    Rescales the given array to [newMin,newMax]. Nothing is done if the input is constant or if the new bounds equal the old ones.
    
    Parameters:
    input - the input array
    newMin - the new min bound
    newMax - the new max bound
    overwrite - true overwrites the input data, false returns the result in a new structure
  - standardize
```
public static double[] standardize(double[] input,
                   boolean overwrite)
```
    Standardize the input data by subtracting the mean value and dividing by the standard deviation
    
    Parameters:
    input - the data to standardize
    overwrite - true if the output should overwrite the input, false if a new array should be returned
    
    Returns:
    the standardized data
  - correlation
```
public static double correlation(double[] a,
                 double[] b)
                          throws java.lang.IllegalArgumentException
```
    Computes the classical correlation coefficient between 2 populations.
    This coefficient is given by:
```
                       sum(a[i] * b[i])
 r(a,b) = -------------------------------------------
          sqrt( sum(a[i] * a[i]) * sum(b[i] * b[i]) )
 
```
    Parameters:
    a - a population
    b - a population
    
    Returns:
    the correlation coefficient between a and b.
    
    Throws:
    
    java.lang.IllegalArgumentException - if the two input population have different sizes
  - correlationPearson
```
public static double correlationPearson(double[] a,
                        double[] b)
                                 throws java.lang.IllegalArgumentException
```
    Computes the Pearson correlation coefficient between two populations of same size N.
    This coefficient is computed by:
```
          sum(a[i] * b[i]) - N * mean(a) * mean(b)
 r(a,b) = ----------------------------------------
                  (N-1) * std(a) * std(b)
 
```
    Parameters:
    a - a population
    b - a population
    
    Returns:
    the Pearson correlation measure between a and b.
    
    Throws:
    
    java.lang.IllegalArgumentException - if the two input population have different sizes

Class ArrayMath

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

ArrayMath

Method Detail

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