com.expleague.ml.func.FuncEnsemble Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of jmll

Various ML methods implemented by myself and my students

There is a newer version: 1.4.9

package com.expleague.ml.func;

import com.expleague.commons.math.vectors.Vec;
import com.expleague.commons.math.Func;

import java.util.List;

/**
 * User: qdeee
 * Date: 09.04.14
 */

public class FuncEnsemble extends Ensemble implements Func{
  public FuncEnsemble(final X[] models, final Vec weights) {
    super(models, weights);
  }

  public FuncEnsemble(final List models, final double step) {
    super(models, step);
  }

  @Override
  public double value(final Vec x) {
    double result = 0.;
    double weightTotal = 0;
    for (int i = 0; i < size(); i++) {
      double weight = weights.get(i);
      result += models[i].value(x) * weight;
      weightTotal += weight;
    }
    return result / weightTotal;
  }

  @Override
  public int dim() {
    return super.xdim();
  }
}