From: Jim Procter <jprocter@compbio.dundee.ac.uk>
Date: Wed, 16 Oct 2013 16:40:16 +0000 (+0100)
Subject: JAL-1395 do not calculate non-gap consensus when no symbols present in column (regres... 
X-Git-Tag: Jalview_2_9~219^2
X-Git-Url: http://source.jalview.org/gitweb/?a=commitdiff_plain;h=416f6e172aa77e3b0f2c2bd2b7a5655a6194d936;hp=fd103a630efc6d0f7abb0e4f9f5f8038b54f51aa;p=jalview.git

JAL-1395 do not calculate non-gap consensus when no symbols present in column (regression on JAL-1373
---

diff --git a/src/jalview/analysis/AAFrequency.java b/src/jalview/analysis/AAFrequency.java
index df5ca8d..08a3f52 100755
--- a/src/jalview/analysis/AAFrequency.java
+++ b/src/jalview/analysis/AAFrequency.java
@@ -181,8 +181,10 @@ public class AAFrequency
       percentage = ((float) maxCount * 100) / jSize;
       residueHash.put(PID_GAPS, new Float(percentage));
 
-      percentage = ((float) maxCount * 100) / nongap;
-      residueHash.put(PID_NOGAPS, new Float(percentage));
+      if (nongap>0) {
+        percentage = ((float) maxCount * 100) / nongap;
+        residueHash.put(PID_NOGAPS, new Float(percentage));
+      }
       result[i] = residueHash;
     }
   }