Index: /trunk/archive/scripts/src/modeltest.c
===================================================================
--- /trunk/archive/scripts/src/modeltest.c	(revision 4037)
+++ /trunk/archive/scripts/src/modeltest.c	(revision 4038)
@@ -88,4 +88,5 @@
     psVector *v;
     psVector *p;
+    psVector *mask;
 
     psTraceSetLevel (".", 3);
@@ -110,5 +111,11 @@
     p[0].data.F32[3] = 2.0;
 
-    rc = psMinimizeLMChi2(myMin, NULL, p, NULL, x, y, NULL, fgaussOD);
+    mask = psVectorAlloc (4, PS_TYPE_U8);
+    mask->data.U8[0] = 0;
+    mask->data.U8[1] = 0;
+    mask->data.U8[2] = 0;
+    mask->data.U8[3] = 1;
+
+    rc = psMinimizeLMChi2(myMin, NULL, p, mask, x, y, NULL, fgaussOD);
   
     for (i = 0; i < p[0].n; i++) {