Pandas Dataframe Multiindex Merge

Question

I wanted to ask a questions regarding merging multiindex dataframe in pandas, here is a hypothetical scenario:

arrays = [[\'bar\', \'bar\', \'baz\', \'baz\'         


        

Answer 1

Assign it by combine_first

s1.combine_first(s2)
Out[19]: 
                    s1        s2
first second                    
bar   one     0.039203  0.795963
      two     0.454782 -0.222806
baz   one     3.101120 -0.645474
      two    -1.174929 -0.875561
foo   one    -0.887226  1.078218
      two     1.507546 -1.078564
qux   one     0.028048  0.042462
      two     0.826544 -0.375351

# s2.combine_first(s1)