--- a/bamCompare.xml	Mon Dec 05 08:12:20 2016 -0500
+++ b/bamCompare.xml	Tue Jan 24 04:59:05 2017 -0500
@@ -114,6 +114,7 @@
                 <option value="ratio">Compute the ratio of the number of reads</option>
                 <option value="subtract">Compute difference (subtract input from treatment) of the number of reads</option>
                 <option value="add">Compute the sum of number of reads</option>
+                <option value="mean">Compute the mean of the number of reads between the two files</option>
                 <option value="reciprocal_ratio">Computes the fold change. If the fold change is less than 1, the negative of the inverse is reported. E.g. A fold change of 10 to 5 would be reported not as 0.5 but as -2</option>
                 <option value="first">Returns the scaled value of the first BAM file</option>
                 <option value="second">Returns the scaled value of the second BAM file</option>
@@ -125,6 +126,7 @@
                 <expand macro="pseudocount" />
             </when>
             <when value="add" />
+            <when value="mean" />
             <when value="first" />
             <when value="second" />
             <when value="reciprocal_ratio">