--- a/qiime2/qiime_diversity_alpha-group-significance.xml	Wed Jul 17 01:53:11 2019 -0400
+++ b/qiime2/qiime_diversity_alpha-group-significance.xml	Tue Aug 13 07:40:25 2019 -0400
@@ -10,15 +10,17 @@
 --i-alpha-diversity=$ialphadiversity
 
 
+#if $input_files_mmetadatafile:
 #def list_dict_to_string(list_dict):
 #set $file_list = list_dict[0]['additional_input'].__getattr__('file_name')
 #for d in list_dict[1:]:
-	#set $file_list = $file_list + ',' + d['additional_input'].__getattr__('file_name')
+	#set $file_list = $file_list + ' --m-metadata-file=' + d['additional_input'].__getattr__('file_name')
 #end for
 #return $file_list
 #end def
+--m-metadata-file=$list_dict_to_string($input_files_mmetadatafile)
+#end if
 
---m-metadata-file=$list_dict_to_string($input_files_mmetadatafile)
 
 --o-visualization=ovisualization
 ;
@@ -29,7 +31,7 @@
 	<inputs>
 		<param format="qza,no_unzip.zip" label="--i-alpha-diversity: ARTIFACT SampleData[AlphaDiversity] Vector of alpha diversity values by sample.  [required]" name="ialphadiversity" optional="False" type="data"/>
 
-		<repeat name="input_files_mmetadatafile" optional="True" title="--m-metadata-file">
+		<repeat name="input_files_mmetadatafile" optional="True" title="--m-metadata-file  [required]">
 			<param label="--m-metadata-file: Metadata file or artifact viewable as metadata. This option may be supplied multiple times to merge metadata. [optional]" name="additional_input" type="data" format="tabular,qza,no_unzip.zip" />
 		</repeat>
 	</inputs>
@@ -37,26 +39,16 @@
 		<data format="html" label="${tool.name} on ${on_string}: visualization.qzv" name="ovisualization"/>
 	</outputs>
 	<help><![CDATA[
-Beta diversity group significance
-#################################
+Alpha diversity comparisons
 
-Determine whether groups of samples are significantly different from one
-another using a permutation-based statistical test.
+Visually and statistically compare groups of alpha diversity values.
 
 Parameters
 ----------
-distance_matrix : DistanceMatrix
-    Matrix of distances between pairs of samples.
-metadata : MetadataColumn[Categorical]
-    Categorical sample metadata column.
-method : Str % Choices('permanova', 'anosim', 'permdisp'), optional
-    The group significance test to be applied.
-pairwise : Bool, optional
-    Perform pairwise tests between all pairs of groups in addition to the
-    test across all groups. This can be very slow if there are a lot of
-    groups in the metadata column.
-permutations : Int, optional
-    The number of permutations to be run when computing p-values.
+alpha_diversity : SampleData[AlphaDiversity]
+    Vector of alpha diversity values by sample.
+metadata : Metadata
+    The sample metadata.
 
 Returns
 -------