Kitaro
0
Q:

replace "-" for nan in dataframe

data["Gender"].fillna("No Gender", inplace = True) 
6
In [7]: df
Out[7]: 
          0         1
0       NaN       NaN
1 -0.494375  0.570994
2       NaN       NaN
3  1.876360 -0.229738
4       NaN       NaN

In [8]: df.fillna(0)
Out[8]: 
          0         1
0  0.000000  0.000000
1 -0.494375  0.570994
2  0.000000  0.000000
3  1.876360 -0.229738
4  0.000000  0.000000
2
df['DataFrame Column'] = df['DataFrame Column'].fillna(0)
5
df = df.replace(r'^\s*$', np.NaN, regex=True)
1
df.replace(np.nan,0)
3
df.fillna('', inplace=True)
1

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