bug fix

rowers/interactiveplots.py

@@ -2785,8 +2785,11 @@ def interactive_cum_flex_chart2(theworkouts,promember=0,
 		title="Max Work per Stroke",callback=callback)
     callback.args["maxwork"] = slider_work_max
 
-    distmax = 100+100*int(datadf['distance'].max()/100.)
-    
+    try:
+        distmax = 100+100*int(datadf['distance'].max()/100.)
+    except KeyError:
+        distmax = 1000.
+        
     slider_dist_min = Slider(start=0,end=distmax,value=0,step=1,
 			     title="Min Distance",callback=callback)
     callback.args["mindist"] = slider_dist_min