bug fixes

rowers/interactiveplots.py

@@ -2475,9 +2475,12 @@ def interactive_flex_chart2(id=0,promember=0,
     slider_work_max = Slider(start=0.0, end=1500,value=1500.0, step=10,
 		title="Max Work per Stroke",callback=callback)
     callback.args["maxwork"] = slider_work_max
-    
-    distmax = 100+100*int(rowdata['distance'].max()/100.)
-    
+
+    try:
+        distmax = 100+100*int(rowdata['distance'].max()/100.)
+    except KeyError:
+        distmax = 100
+        
     slider_dist_min = Slider(start=0,end=distmax,value=0,step=1,
 			     title="Min Distance",callback=callback)
     callback.args["mindist"] = slider_dist_min