diff --git a/TestCREClass.m b/TestCREClass.m
index 2a2f0bd..24e50c8 100644
--- a/TestCREClass.m
+++ b/TestCREClass.m
@@ -21,8 +21,15 @@ S.UseHistProxy=false;
 S.Calc;
 S
 %% Test CCRE class
-CS=CCREClass;
-CS.Data=randn(100,1);
-CS.nBin=10;
-CS.DataRef=randn(100,1);
-CS.nBinRef=10;
\ No newline at end of file
+figure(1);clf;hold on
+A=randn(10);
+B=randn(10);
+for k=-1:0.1:1
+    CS=CCREClass;
+    CS.Data=(1-abs(k))*A+k*B;
+    CS.nBin=100;
+    CS.DataRef=B;
+    CS.nBinRef=50;
+    CS.Calc;
+    plot(k,CS.CCRE,'o')
+end
\ No newline at end of file