Add DataFrame.update method: in-place modification alternative to combine_first

[wesm]

http://stackoverflow.com/questions/9794697/best-way-to-construct-a-pandas-dataframe-composed-of-different-chunks

[saroele]

Thanks for making this an issue. I will try the combine_first option , but I think .update would indeed be a nice enhancement.

[wesm]

Just implemented this today, should be useful to folks