diff src/samer/maths/random/SparseMixture.java @ 0:bf79fb79ee13

Initial Mercurial check in.

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/samer/maths/random/SparseMixture.java	Tue Jan 17 17:50:20 2012 +0000
@@ -0,0 +1,24 @@
+/*
+ *	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 SparseMixture extends BaseRandom
+{
+	VDouble		p = new VDouble("p",0.5);
+	Generator	g1;
+	
+	public void dispose() { g1.dispose(); p.dispose(); }
+	public double next() { return (rnd.nextDouble()<p.value) ? 0 : g1.next(); }
+
+	public SparseMixture(Generator g1) { this.g1=g1; }
+	public String toString() { return "Sparsified "+g1; }
+}