adding extra parameters to X axis flex chart

rowers/dataprep.py

@@ -1686,9 +1686,13 @@ def getsmallrowdata_db(columns, ids=[], doclean=True, workstrokesonly=True):
                 cdata = row.df[c]
                 cdata.fillna(inplace=True,method='bfill')
                 # This doesn't work because sometimes data are duplicated at save
-                cdata2 = savgol_filter(cdata.values,windowsize,3)
+                try:
+                    cdata2 = savgol_filter(cdata.values,windowsize,3)
+                    data[c] = cdata2
+                except ValueError:
+                    data[c] = cdata
+
 
-                data[c] = cdata2
 
             except (KeyError, AttributeError):
                 data[c] = 0