Fix bug in getExistingHelpers for ConvexMonotone interpolation

amaggiulli · Jan 30, 2018 · 7ebd482 · 7ebd482
1 parent 7abac70
commit 7ebd482
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/QLNet/Math/Interpolations/convexmonotoneinterpolation.cs b/src/QLNet/Math/Interpolations/convexmonotoneinterpolation.cs
@@ -644,7 +644,7 @@ public override double secondDerivative(double x) {
         public Dictionary<double, ISectionHelper> getExistingHelpers() {
             Dictionary<double, ISectionHelper> retArray = new Dictionary<double,ISectionHelper>(sectionHelpers_);
             if (constantLastPeriod_)
-                retArray.Remove(xBegin_.Last());
+                retArray.Remove(retArray.Keys.Last());
             return retArray;
         }
     }