Merge branch 'master' of https://github.com/redpony/cdec

1 files changed, 0 insertions, 21 deletions

diff --git a/gi/posterior-regularisation/prjava/src/util/DigammaFunction.java b/gi/posterior-regularisation/prjava/src/util/DigammaFunction.java
deleted file mode 100644
index ff1478ad..00000000
--- a/gi/posterior-regularisation/prjava/src/util/DigammaFunction.java
+++ /dev/null
@@ -1,21 +0,0 @@
-package util;
-
-public class DigammaFunction {
-	public static double expDigamma(double number){
-		if(number==0)return number;
-		return Math.exp(digamma(number));
-	}
-	
-	public static double digamma(double number){
-		if(number > 7){
-			return digammApprox(number-0.5);
-		}else{
-			return digamma(number+1) - 1.0/number;
-		}
-	}
-	
-	private static double digammApprox(double value){
-		return Math.log(value) + 0.04167*Math.pow(value, -2) - 0.00729*Math.pow(value, -4) 
-		+  0.00384*Math.pow(value, -6) - 0.00413*Math.pow(value, -8);
-	}
-}