Example usage for org.apache.commons.math.random UncorrelatedRandomVectorGenerator nextVector

Introduction

In this page you can find the example usage for org.apache.commons.math.random UncorrelatedRandomVectorGenerator nextVector.

Prototype

public double[] nextVector() 

Source Link

Document

Generate an uncorrelated random vector.

Usage

From source file:com.tomgibara.cluster.CreateGaussianCross.java

private static void writeCluster(NormalizedRandomGenerator gen, double[] means, double[] deviations, int size,
        Writer writer) throws IOException {
    UncorrelatedRandomVectorGenerator c = new UncorrelatedRandomVectorGenerator(means, deviations, gen);
    for (int i = 0; i < size; i++) {
        double[] pt = c.nextVector();
        writer.write(String.format("%3.3f %3.3f%n", pt[0], pt[1]));
    }//  w  w  w .j  a v a 2  s  .  c o  m
}

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From source file:com.tomgibara.cluster.CreateUniformCircles.java

private static void writeCluster(NormalizedRandomGenerator gen, double[] means, double[] deviations, int size,
        Writer writer) throws IOException {
    UncorrelatedRandomVectorGenerator c = new UncorrelatedRandomVectorGenerator(means, deviations, gen);
    int count = 0;
    while (count < size) {
        double[] pt = c.nextVector();
        double x = pt[0] - means[0];
        double y = pt[1] - means[1];
        if (x * x + y * y > deviations[0] * deviations[1])
            continue;
        writer.write(String.format("%3.3f %3.3f%n", pt[0], pt[1]));
        count++;/*from ww w  . j a  va  2s  .  co m*/
    }
}

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