mnguyen wrote:

Sorry if I sound dense but are we programming these functions within the ipython notebook or inside a separate .py file?  

Also, for "2pts: Replace all N/A or NaN  (if they exist) with medians for all numeric columns except the ones in the previous line: for those choose mode."

By "previous line", did you mean the Trans, Drive, Fuel, Veh Class, SmartWay columns that we had converted to integers?  I was not able to find  missing data for these, so does that mean this is extraneous as far as using the mode to fill in missing data?

I guess in this case it is a little redundant, but he was just being complete.  It wouldn't make much sense to fill missing data with the average value of non-quantitative data