--- a/metaquantome_stat.xml	Thu Apr 25 13:50:59 2019 -0400
+++ b/metaquantome_stat.xml	Wed Sep 23 17:02:11 2020 +0000
@@ -12,6 +12,7 @@
             --ontology='$mode_args.ontology_args.ontology'
         #end if
         --file '$file'
+        --control_group '$control_group'
         --parametric '$parametric'
         $paired
         --outfile='$outfile'
@@ -35,6 +36,9 @@
                 <expand macro="ONTOLOGY_ARGS"/>
             </when>
         </conditional>
+        <param argument="--control_group" type="text" label="Name of the control sample group of control (used as denominator for fold change evaluation).">
+            <validator type="empty_field"/>
+        </param>
         <param argument="--parametric" type="select" label="Statistical test to perform">
             <option value="False" selected="true">Wilcoxon test (nonparametric)</option>
             <option value="True">standard t-test (parametric)</option>
@@ -51,6 +55,7 @@
         <param name="ontology" value="ec" />
         <param name="mode" value="f" />
         <param name="samps" value="samples_basic.tab" ftype="tabular" />
+        <param name="control_group" value="s2"/>
         <output name="outfile" value="ec_ttest_tested.tab" ftype="tabular"/>
       </test>
     </tests>