From Pandas data frame, how to get index of non "NaN" values?
My data frame is
A b c
0 1 q1 1
1 2 NaN 3
2 3 q2 3
3 4 q1 NaN
4 5 q2 7
And I want the index of the rows in which column b is not NaN. (there can be NaN values in other column e.g. c )
non_nana_index = [0,2,3,4]
Using this non "NaN" index list I want to create new data frame which column b do not have "Nan"
df2=
A b c
0 1 q1 1
1 3 q2 3
2 4 q1 NaN
3 5 q2 7
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