view src/samer/maths/random/MixtureVec.java @ 8:5e3cbbf173aa tip

Reorganise some more

/*
 *	Copyright (c) 2000, Samer Abdallah, King's College London.
 *	All rights reserved.
 *
 *	This software is provided AS iS and WITHOUT ANY WARRANTY; 
 *	without even the implied warranty of MERCHANTABILITY or 
 *	FITNESS FOR A PARTICULAR PURPOSE.
 */

package samer.maths.random;
import  samer.maths.*;
import  samer.core.types.*;

public class MixtureVec extends BaseRandom
{
	BinaryVec	u;
	Generator	g1;
	Generator	g2;

	public void dispose() { u.dispose(); g1.dispose(); g2.dispose(); }
	public double next() { return (u.next()==1) ? g1.next() : g2.next(); }

	public void next(double [] x)
	{ 
		u.next(x);
		for (int i=0; i<x.length; i++) {
			if (x[i]==1) x[i]=g1.next();
			else         x[i]=g2.next();
		}
	}

	public MixtureVec(Generator g1, Generator g2, BinaryVec u) 
	{
		this.u=u;
		this.g1=g1;
		this.g2=g2;
	}
}