added histogram

need to filter on spm, wps

rowers/forms.py

@@ -840,6 +840,7 @@ palettechoices = tuple((p,p) for p in palettes.keys())
 analysischoices = (
     ('boxplot','Box Chart'),
     ('trendflex','Trend Flex'),
+    ('histo','Histogram'),
     )
     
 class AnalysisChoiceForm(forms.Form):