python - How to use groupby method to combine rows or columns by using their mean? -

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for example:

         b  c coffee  1  2  3 sprite  2  3  1 coffee  1  3  2 coke    2  4  5 sprite  2  3  1 coke    3  4  5

if wanna use groupby method combine these rows (or columns) using mean, how can that?

         b  c coffee  x  x  x sprite  x  x  x coke    x  x  x

x mean

as said, it's call groupby. use level=0 group again index:

df out[65]:           b  c coffee  1  2  3 sprite  2  3  1 coffee  1  3  2 coke    2  4  5 sprite  2  3  1 coke    3  4  5  df.groupby(level=0).mean() out[66]:               b    c coffee  1.0  2.5  2.5 coke    2.5  4.0  5.0 sprite  2.0  3.0  1.0

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