python remove nan rows
df = df[df['my_var'].notna()]python remove nan rows
df = df[df['my_var'].notna()]How to shift non nan values up and put nan values down
np.random.seed(100)
df = pd.DataFrame(np.random.randn(5,4))
df.iloc[1,2] = np.NaN
df.iloc[0,1] = np.NaN
df.iloc[2,1] = np.NaN
df.iloc[2,0] = np.NaN
print (df)
0 1 2 3
0 -1.749765 NaN 1.153036 -0.252436
1 0.981321 0.514219 NaN -1.070043
2 NaN NaN -0.458027 0.435163
3 -0.583595 0.816847 0.672721 -0.104411
4 -0.531280 1.029733 -0.438136 -1.118318
df1 = df.apply(lambda x: pd.Series(x.dropna().values))
print (df1)
0 1 2 3
0 -1.749765 0.514219 1.153036 -0.252436
1 0.981321 0.816847 -0.458027 -1.070043
2 -0.583595 1.029733 0.672721 0.435163
3 -0.531280 NaN -0.438136 -0.104411
4 NaN NaN NaN -1.118318Copyright © 2021 Codeinu
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