pandas drop row if all columns are nan code example
Example 1: drop columns with nan pandas
>>> df.dropna(axis='columns')
name
0 Alfred
1 Batman
2 Catwoman
Example 2: pandas drop rows with nan in a particular column
In [30]: df.dropna(subset=[1])
Out[30]:
0 1 2
1 2.677677 -1.466923 -0.750366
2 NaN 0.798002 -0.906038
3 0.672201 0.964789 NaN
5 -1.250970 0.030561 -2.678622
6 NaN 1.036043 NaN
7 0.049896 -0.308003 0.823295
9 -0.310130 0.078891 NaN
Example 3: drop column with nan values
fish_frame = fish_frame.dropna(axis = 1, how = 'all')