Merge multiple DataFrames Pandas

Question

This might be considered as a duplicate of a thorough explanation of various approaches, however I can\'t seem to find a solution to my problem there due to a higher number

Answer 1

I would use append.

>>> df1.append(df2).append(df3).sort_values('depth')

        VAR1     VAR2    VAR3  depth    profile
0  38.196202      NaN     NaN    0.5  profile_1
1  38.198002      NaN     NaN    0.6  profile_1
0        NaN  0.20440     NaN    0.6  profile_1
1        NaN  0.20442     NaN    1.1  profile_1
2        NaN  0.20446     NaN    1.2  profile_1
0        NaN      NaN  15.188    1.2  profile_1
2  38.200001      NaN     NaN    1.3  profile_1
1        NaN      NaN  15.182    1.3  profile_1
2        NaN      NaN  15.182    1.4  profile_1

Obviously if you have a lot of dataframes, just make a list and loop through them.