ArrayUtil

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Class ArrayUtil

java.lang.Object
  ArrayUtil

public final class ArrayUtil
extends java.lang.Object
extends java.lang.Object

Constructor Summary
`ArrayUtil()`

Method Summary
`static double[]`	`amplitude(Complex[] data)`
`static double[][]`	`amplitude(Complex[][] data)`
`static double[]`	`autoCorrelateViaFFT(double[] data)`
`static double[]`	`averagePower(double[] data, double[] w)`
`static double[]`	`averagePower(double[] data, int windowSize)`
`static double[]`	`backFFT(Complex[] spectrum)`
`static double[][]`	`backFFT(Complex[][] spectrum)`
`static double[]`	`backFFT(Complex[] spectrum, int n)`
`static double[]`	`convolveViaFFT(double[] data, double[] beam)`
`static java.lang.Object[]`	`copy(java.lang.Object[] data)`
`static Complex[]`	`FFT(double[] data)`
`static Complex[]`	`FFT(double[] data, int n)`
`static void`	`four1(double[] data, int nn, boolean forward)`
`static double[]`	`getBlackmanHarrisWindow(int n)`
`static double[]`	`getBlackmanNutallWindow(int n)`
`static double[]`	`getBlackmanWindow(int n)`
`static double`	`getEquivalentWindowWidth(java.lang.String name)`
`static double[]`	`getFlatTopWindow(int n)`
`static double[]`	`getHammingWindow(int n)`
`static double[]`	`getHannWindow(int n)`
`static double[]`	`getNutallWindow(int n)`
`static int`	`getPaddedFFTSize(int size)`
`static double[]`	`getRectangularWindow(int n)`
`static int`	`getTruncatedFFTSize(int size)`
`static double[]`	`getWindowFunction(int n, double[] coeff)`
`static double[]`	`getWindowFunction(java.lang.String name, int n)`
`static java.lang.String[]`	`getWindowFunctionNames()`
`static double[]`	`im(Complex[] data)`
`static double[]`	`imaginary(Complex[] data)`
`static Complex[][]`	`loadFFT(double[][] data)`
`static Complex[][]`	`loadFFT(double[][] data, Complex[][] cdata)`
`static double`	`median(double[] data)`
`static double`	`median(double[] data, int fromIndex, int toIndex)`
`static float`	`median(float[] data)`
`static float`	`median(float[] data, int fromIndex, int toIndex)`
`static double`	`median(WeightedPoint[] data)`
`static double`	`median(WeightedPoint[] data, int fromIndex, int toIndex)`
`static double[]`	`noiseAmplitude(Complex[] data)`
`static double[]`	`noiseNorm(Complex[] data)`
`static double[]`	`norm(Complex[] data)`
`static double[][]`	`norm(Complex[][] data)`
`static Complex[]`	`overlapFFT(double[] data, int windowSize)`
`static Complex[]`	`padForFFT(Complex[] data)`
`static double[]`	`padForFFT(double[] data)`
`static Complex[]`	`padWithZeros(Complex[] data, int n)`
`static double[]`	`padWithZeros(double[] data, int n)`
`static void`	`print(double[] data)`
`static void`	`print(double[] data, java.text.DecimalFormat df)`
`static void`	`print(double[] data, java.io.PrintStream out, java.text.DecimalFormat df)`
`static double[]`	`re(Complex[] data)`
`static double[]`	`real(Complex[] data)`
`static void`	`realft(double[] data, int n, boolean forward)`
`static int[]`	`selectionNearSum(double nearValue, double[] array)`
`static Vector2D[]`	`truncateForFFT(Complex[] data)`
`static double[]`	`truncateForFFT(double[] data)`
`static void`	`unloadFFT(Complex[][] cdata, double[][] data)`
`static void`	`unsecureBackFFT(Complex[] fdata, double[] data)`
`static void`	`unsecureFFT(Complex[][] data, boolean isForward)`
`static void`	`unsecureFFT(Complex[][] data, boolean isForward, Complex[] temp, double[] dtemp)`
`static void`	`unsecureFFT(Complex[] data, boolean isForward, double[] temp)`
`static void`	`unsecureFFT(double[] data, Complex[] fdata)`

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

Constructor Detail

ArrayUtil

public ArrayUtil()

Method Detail

print

public static void print(double[] data)

print

public static void print(double[] data,
                         java.text.DecimalFormat df)

print

public static void print(double[] data,
                         java.io.PrintStream out,
                         java.text.DecimalFormat df)

copy

public static java.lang.Object[] copy(java.lang.Object[] data)

median

public static double median(double[] data)

median

public static double median(double[] data,
                            int fromIndex,
                            int toIndex)

median

public static float median(float[] data)

median

public static float median(float[] data,
                           int fromIndex,
                           int toIndex)

median

public static double median(WeightedPoint[] data)

median

public static double median(WeightedPoint[] data,
                            int fromIndex,
                            int toIndex)

selectionNearSum

public static int[] selectionNearSum(double nearValue,
                                     double[] array)

amplitude

public static double[] amplitude(Complex[] data)

noiseAmplitude

public static double[] noiseAmplitude(Complex[] data)

norm

public static double[] norm(Complex[] data)

noiseNorm

public static double[] noiseNorm(Complex[] data)

real

public static double[] real(Complex[] data)

re

public static double[] re(Complex[] data)

imaginary

public static double[] imaginary(Complex[] data)

im

public static double[] im(Complex[] data)

getPaddedFFTSize

public static int getPaddedFFTSize(int size)

getTruncatedFFTSize

public static int getTruncatedFFTSize(int size)

truncateForFFT

public static double[] truncateForFFT(double[] data)

truncateForFFT

public static Vector2D[] truncateForFFT(Complex[] data)

padForFFT

public static double[] padForFFT(double[] data)

padForFFT

public static Complex[] padForFFT(Complex[] data)

padWithZeros

public static double[] padWithZeros(double[] data,
                                    int n)

padWithZeros

public static Complex[] padWithZeros(Complex[] data,
                                     int n)

getWindowFunctionNames

public static java.lang.String[] getWindowFunctionNames()

getEquivalentWindowWidth

public static double getEquivalentWindowWidth(java.lang.String name)

getWindowFunction

public static double[] getWindowFunction(java.lang.String name,
                                         int n)

getRectangularWindow

public static double[] getRectangularWindow(int n)

getHammingWindow

public static double[] getHammingWindow(int n)

getHannWindow

public static double[] getHannWindow(int n)

getBlackmanWindow

public static double[] getBlackmanWindow(int n)

getNutallWindow

public static double[] getNutallWindow(int n)

getBlackmanHarrisWindow

public static double[] getBlackmanHarrisWindow(int n)

getBlackmanNutallWindow

public static double[] getBlackmanNutallWindow(int n)

getFlatTopWindow

public static double[] getFlatTopWindow(int n)

getWindowFunction

public static double[] getWindowFunction(int n,
                                         double[] coeff)

convolveViaFFT

public static double[] convolveViaFFT(double[] data,
                                      double[] beam)

autoCorrelateViaFFT

public static double[] autoCorrelateViaFFT(double[] data)

averagePower

public static double[] averagePower(double[] data,
                                    int windowSize)

averagePower

public static double[] averagePower(double[] data,
                                    double[] w)

overlapFFT

public static Complex[] overlapFFT(double[] data,
                                   int windowSize)

FFT

public static Complex[] FFT(double[] data)

backFFT

public static double[][] backFFT(Complex[][] spectrum)

FFT

public static Complex[] FFT(double[] data,
                            int n)

unsecureFFT

public static void unsecureFFT(double[] data,
                               Complex[] fdata)

unsecureBackFFT

public static void unsecureBackFFT(Complex[] fdata,
                                   double[] data)

backFFT

public static double[] backFFT(Complex[] spectrum)

backFFT

public static double[] backFFT(Complex[] spectrum,
                               int n)

unsecureFFT

public static void unsecureFFT(Complex[] data,
                               boolean isForward,
                               double[] temp)

unsecureFFT

public static void unsecureFFT(Complex[][] data,
                               boolean isForward)

unsecureFFT

public static void unsecureFFT(Complex[][] data,
                               boolean isForward,
                               Complex[] temp,
                               double[] dtemp)

loadFFT

public static Complex[][] loadFFT(double[][] data)

loadFFT

public static Complex[][] loadFFT(double[][] data,
                                  Complex[][] cdata)

unloadFFT

public static void unloadFFT(Complex[][] cdata,
                             double[][] data)

amplitude

public static double[][] amplitude(Complex[][] data)

norm

public static double[][] norm(Complex[][] data)

realft

public static void realft(double[] data,
                          int n,
                          boolean forward)

four1

public static void four1(double[] data,
                         int nn,
                         boolean forward)

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