Dict of dicts of dicts to DataFrame [duplicate]

Answer 1

df = pd.Panel.from_dict(d).to_frame()

output:

                   col1        col2
major minor                        
data1 row1         0.87        0.87
      row2      15352.3     15352.3
      row3            0           0
data2 row1   Title col1  Title col2
      row2   Title col1  Title col2
      row3   Title col1  Title col2
data3 row1      14.4878     24.4878
      row2      14.9561     24.9561
      row3      16.8293     26.8293
data4 row1   Title row1  Title row1
      row2   Title row2  Title row2
      row3   Title row3  Title row3

If you don't want use Panel:

pd.concat(map(pd.DataFrame, d.itervalues()), keys=d.keys()).stack().unstack(0)