Index: trunk/archive/scripts/src/modeltest.c
===================================================================
--- trunk/archive/scripts/src/modeltest.c	(revision 4048)
+++ trunk/archive/scripts/src/modeltest.c	(revision 4756)
@@ -115,5 +115,5 @@
     mask->data.U8[1] = 0;
     mask->data.U8[2] = 0;
-    mask->data.U8[3] = 1;
+    mask->data.U8[3] = 0;
 
     rc = psMinimizeLMChi2(myMin, NULL, p, mask, x, y, NULL, fgaussOD);