Example usage for weka.core.matrix Matrix random

Introduction

In this page you can find the example usage for weka.core.matrix Matrix random.

Prototype

public static Matrix random(int m, int n) 

Source Link

Document

Generate matrix with random elements

Usage

From source file:org.mitre.clustering.AffinityPropagation.java

License:Open Source License

public AffinityPropagation(Matrix sims, int max, int cons, double lambda, double p) {

    s = sims;/*from   w  w w .  j  a v  a  2s.  c  om*/
    maxits = max;
    convits = cons;
    lam = lambda;

    count = s.getColumnDimension();

    /*
     * Add noise to get rid of degeneracies
     */
    Matrix rand = Matrix.random(count, count);
    Matrix small = new Matrix(count, count, .0000001);

    Matrix t = s.times(Double.MIN_VALUE).plus(small);
    t = t.times(rand);
    s = s.plus(t);

    /*
     * Put preferences on diagonal of S
     */
    for (int i = 0; i < count; i++) {
        s.set(i, i, p);
    }

    try {
        run();
    } catch (Exception ex) {
        ex.printStackTrace();
    }

}

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