com.pacbio.secondary.vis.common.collection

Class MathUtility

java.lang.Object

com.pacbio.secondary.vis.common.collection.MathUtility

public class MathUtility
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
MathUtility()

Method Summary

Methods

Modifier and Type	Method and Description
static double	choose(int n, int k)
static double[][]	createMatrix(int nrows, int ncols)
static double	factorial(int n)
static void	fillMatrix(double[][] a, double val)
static double	fmod(double x, double m) Computes a floating point modulo operation of the value x to m such that the result is in the range [0,m)
static void	main(java.lang.String[] args)
static double	maxDouble(java.util.Iterator<java.lang.Double> iterator)
static double	minDouble(java.util.Iterator<java.lang.Double> iterator)
static double	prod(int i, int j)
static double	quantile(double[] array, double q)
static <T> T	quantile(java.util.Vector<T> array, java.util.Comparator<T> c, float q)
static double	restrict(double value, double lower, double upper) Restricts the given value value to the interval [lower,upper].
static float	restrict(float value, float lower, float upper)
static int	restrict(int value, int lower, int upper) Restricts the given value value to the interval [lower,upper].
static int	sign(double x)
static double	square(double x)
static void	unitMatrix(double[][] a)

Methods inherited from class java.lang.Object

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

Constructor Detail

MathUtility

public MathUtility()

Method Detail

sign

public static int sign(double x)

square

public static double square(double x)

restrict

public static double restrict(double value,
              double lower,
              double upper)

Restricts the given value value to the interval [lower,upper].

Parameters:

value -

lower -

upper -

Returns:

The restricted value.

restrict

public static float restrict(float value,
             float lower,
             float upper)

restrict

public static int restrict(int value,
           int lower,
           int upper)

Restricts the given value value to the interval [lower,upper].

Parameters:

value -

lower -

upper -

Returns:

the restricted value

maxDouble

public static double maxDouble(java.util.Iterator<java.lang.Double> iterator)

minDouble

public static double minDouble(java.util.Iterator<java.lang.Double> iterator)

factorial

public static double factorial(int n)

prod

public static double prod(int i,
          int j)

choose

public static double choose(int n,
            int k)

fmod

public static double fmod(double x,
          double m)

Computes a floating point modulo operation of the value x to m such that the result is in the range [0,m)

Parameters:

x -

m -

Returns:

modulo

createMatrix

public static double[][] createMatrix(int nrows,
                      int ncols)

fillMatrix

public static void fillMatrix(double[][] a,
              double val)

unitMatrix

public static void unitMatrix(double[][] a)

quantile

public static <T> T quantile(java.util.Vector<T> array,
             java.util.Comparator<T> c,
             float q)

quantile

public static double quantile(double[] array,
              double q)

main

public static void main(java.lang.String[] args)