Pandas concat: ValueError: Shape of passed values is blah, indices imply blah2

Question

I\'m trying to merge a (Pandas 14.1) dataframe and a series. The series should form a new column, with some NAs (since the index values of the series are a subset of the ind

Answer 1

Try sorting index after concatenating them

result=pd.concat([df1,df2]).sort_index()