Package org.apache.mahout.math

Examples of org.apache.mahout.math.DenseVector.all()

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  public void testTrain() {

    Random gen = RandomUtils.getRandom();
    Exponential exp = new Exponential(0.5, gen);
    Vector beta = new DenseVector(200);
    for (Vector.Element element : beta.all()) {
      int sign = 1;
      if (gen.nextDouble() < 0.5) {
        sign = -1;
      }
      element.set(sign * exp.nextDouble());
 
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  }

  private static AdaptiveLogisticRegression.TrainingExample getExample(int i, Random gen, Vector beta) {
    Vector data = new DenseVector(200);

    for (Vector.Element element : data.all()) {
      element.set(gen.nextDouble() < 0.3 ? 1 : 0);
    }

    double p = 1 / (1 + Math.exp(1.5 - data.dot(beta)));
    int target = 0;
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  @Test
  public void copyLearnsAsExpected() {
    Random gen = RandomUtils.getRandom();
    Exponential exp = new Exponential(0.5, gen);
    Vector beta = new DenseVector(200);
    for (Vector.Element element : beta.all()) {
        int sign = 1;
        if (gen.nextDouble() < 0.5) {
          sign = -1;
        }
      element.set(sign * exp.nextDouble());
 
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  public void testTrain() {

    Random gen = RandomUtils.getRandom();
    Exponential exp = new Exponential(0.5, gen);
    Vector beta = new DenseVector(200);
    for (Vector.Element element : beta.all()) {
      int sign = 1;
      if (gen.nextDouble() < 0.5) {
        sign = -1;
      }
      element.set(sign * exp.nextDouble());
 
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  }

  private static AdaptiveLogisticRegression.TrainingExample getExample(int i, Random gen, Vector beta) {
    Vector data = new DenseVector(200);

    for (Vector.Element element : data.all()) {
      element.set(gen.nextDouble() < 0.3 ? 1 : 0);
    }

    double p = 1 / (1 + Math.exp(1.5 - data.dot(beta)));
    int target = 0;
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  @Test
  public void copyLearnsAsExpected() {
    Random gen = RandomUtils.getRandom();
    Exponential exp = new Exponential(0.5, gen);
    Vector beta = new DenseVector(200);
    for (Vector.Element element : beta.all()) {
        int sign = 1;
        if (gen.nextDouble() < 0.5) {
          sign = -1;
        }
      element.set(sign * exp.nextDouble());
 
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