From: James Procter <j.procter@dundee.ac.uk>
Date: Thu, 28 Sep 2023 16:59:17 +0000 (+0100)
Subject: JAL-3858 don’t divide if we only had one value to count
X-Git-Tag: Release_2_11_4_0~158
X-Git-Url: http://source.jalview.org/gitweb/?a=commitdiff_plain;h=562e94c776a874b2cb8e29e76d24c1478f0a69c8;p=jalview.git

JAL-3858 don’t divide if we only had one value to count
---

diff --git a/src/jalview/datamodel/ContactListImpl.java b/src/jalview/datamodel/ContactListImpl.java
index bb31c5d..7058ac7 100644
--- a/src/jalview/datamodel/ContactListImpl.java
+++ b/src/jalview/datamodel/ContactListImpl.java
@@ -88,7 +88,7 @@ public class ContactListImpl implements ContactListI
         }
       }
     }
-    if (tot > 0)
+    if (tot > 0 && to_column>from_column)
     {
       cr.setMean(tot / (1 + to_column - from_column));
     }