neurord.util

Class ArrayUtil

java.lang.Object

neurord.util.ArrayUtil

public class ArrayUtil
extends Object

Constructor Summary

Constructors

Constructor and Description
ArrayUtil()

Method Summary

Modifier and Type	Method and Description
static double[]	_flatten(double[] flat, double[][] array, int columns)
static int[]	_flatten(int[] flat, int[][][] array, long columns, int fill)
static int[]	_flatten(int[] flat, int[][] array, long columns, int fill)
static int	abssum(int[] a)
static void	copy(double[][] src, double[][] dst)
static void	copy(int[][] src, int[][] dst)
static void	fill(double[][] array, double value)
static void	fill(int[][][] arrays, int value)
static void	fill(int[][] array, int value)
static int	findBracket(double[] v, double x)
static double[]	flatten(double[][] array, int columns)
static int[]	flatten(int[][][] array, long columns, int fill)
static int[]	flatten(int[][] array, long columns, int fill)
static int[]	flatten(int[] flat, int[][][] array, int columns, int fill)
static double[]	interpInAtFor(double[] aw, double[] ax, double[] xbd)
static boolean	intersect(int[] aa, int... bb)
static int[]	iota(int len)
static double[]	log(double[] d)
static double[][]	log(double[][] d)
static double[]	logArray(int len)
static int	maxLength(double[]... array)
static int	maxLength(int[]... array)
static int	maxLength(int[][]... array)
static int	maxLength(String... array)
static double	min(double[] a)
static int[]	negate(int[] ar)
static int[]	pick(int[] big_array, int[] indices)
static long	product(long[] a)
static int[][]	reshape(int[] flat, int rows, int cols)
static double[]	span(double xa, double xb, int nel)
static int	sum(int[] a)
static int	sum(int[][] a)
static int	sum(int[][][] a)
static int[]	toArray(Collection<? extends Integer> coll)
static double[]	toDoubleArray(Collection<Double> list)
static int[]	toIntArray(Collection<Integer> list)
static String	xJoined(int... dims)
static String	xJoined(long... dims)

Methods inherited from class java.lang.Object

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

Constructor Detail

ArrayUtil

public ArrayUtil()

Method Detail

maxLength

public static int maxLength(String... array)

maxLength

public static int maxLength(double[]... array)

maxLength

public static int maxLength(int[]... array)

maxLength

public static int maxLength(int[][]... array)

flatten

public static double[] flatten(double[][] array,
                               int columns)

_flatten

public static double[] _flatten(double[] flat,
                                double[][] array,
                                int columns)

flatten

public static int[] flatten(int[][] array,
                            long columns,
                            int fill)

_flatten

public static int[] _flatten(int[] flat,
                             int[][] array,
                             long columns,
                             int fill)

flatten

public static int[] flatten(int[][][] array,
                            long columns,
                            int fill)

_flatten

public static int[] _flatten(int[] flat,
                             int[][][] array,
                             long columns,
                             int fill)

xJoined

public static String xJoined(int... dims)

xJoined

public static String xJoined(long... dims)

flatten

public static int[] flatten(int[] flat,
                            int[][][] array,
                            int columns,
                            int fill)

log

public static double[] log(double[] d)

log

public static double[][] log(double[][] d)

logArray

public static double[] logArray(int len)

findBracket

public static int findBracket(double[] v,
                              double x)

span

public static double[] span(double xa,
                            double xb,
                            int nel)

interpInAtFor

public static double[] interpInAtFor(double[] aw,
                                     double[] ax,
                                     double[] xbd)

copy

public static void copy(int[][] src,
                        int[][] dst)

copy

public static void copy(double[][] src,
                        double[][] dst)

fill

public static void fill(int[][] array,
                        int value)

fill

public static void fill(double[][] array,
                        double value)

fill

public static void fill(int[][][] arrays,
                        int value)

reshape

public static int[][] reshape(int[] flat,
                              int rows,
                              int cols)

intersect

public static boolean intersect(int[] aa,
                                int... bb)

toArray

public static int[] toArray(Collection<? extends Integer> coll)

sum

public static int sum(int[] a)

abssum

public static int abssum(int[] a)

product

public static long product(long[] a)

sum

public static int sum(int[][] a)

sum

public static int sum(int[][][] a)

min

public static double min(double[] a)

iota

public static int[] iota(int len)

toDoubleArray

public static double[] toDoubleArray(Collection<Double> list)

toIntArray

public static int[] toIntArray(Collection<Integer> list)

pick

public static int[] pick(int[] big_array,
                         int[] indices)

negate

public static int[] negate(int[] ar)