diff flys-artifacts/src/main/java/de/intevation/flys/artifacts/math/fitting/Log.java @ 3165:6b13d7e7b403

FixA: Added more debug output. flys-artifacts/trunk@4778 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Mon, 25 Jun 2012 14:36:46 +0000
parents 4dda67a893da
children 585c0b49e696
line wrap: on
line diff
--- a/flys-artifacts/src/main/java/de/intevation/flys/artifacts/math/fitting/Log.java	Mon Jun 25 13:15:35 2012 +0000
+++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/math/fitting/Log.java	Mon Jun 25 14:36:46 2012 +0000
@@ -33,9 +33,12 @@
 
     @Override
     public double [] gradient(double x, double [] parameters) {
+        double m = parameters[0];
+        double b = parameters[1];
+        double b_x = b + x;
         return new double [] {
-            Math.log(x + parameters[1]),
-            parameters[0]/(x + parameters[0])
+            Math.log(b_x),
+            m/b_x
         };
     }
 

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