Java Array Normalize normalizeRows(float[][] input)

Description

Normalizes each row in a matrix, in place.

License

Open Source License

Declaration

public static void normalizeRows(float[][] input) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

public class Main {
    /**//from  w w  w . j a  v a  2 s  .  c  o m
     * Normalizes each row in a matrix, in place.
     */
    public static void normalizeRows(float[][] input) {
        for (int i = 0; i < input.length; ++i) {
            normalize(input[i]);
        }
    }

    /**
     * Normalizes the given input in place to make it unit length.
     */
    public static void normalize(float[] input) {
        double normSq = 0;
        for (int i = 0; i < input.length; ++i) {
            normSq += input[i] * input[i];
        }
        float norm = (float) Math.sqrt(normSq);
        for (int i = 0; i < input.length; ++i) {
            input[i] = input[i] / norm;
        }
    }
}

Related

1. normalizeMatrix(float[] cm)
2. normalizeMemberNames(final String[] memberNames)
3. normalizePositiveValues(double[][] array)
4. normalizeProb(double[] prob)
5. normalizeRecorderColumn(int column, int tabSize, int[] tabIndices)
6. normalizeSpaces(char[] buf, int origStart, int origEnd)
7. normalizeTo(float[] in, float normsum)
8. normalizeToInPlace(double[] in, double normsum)
9. normalizeToLogProbs(double[] x)