Answers for "python return nan"

1

NAN values count python

# (1) Count NaN values under a single DataFrame column:
df['column name'].isna().sum()

#(2) Count NaN values under an entire DataFrame:
df.isna().sum().sum()

#(3) Count NaN values across a single DataFrame row:
df.loc[[index value]].isna().sum().sum()
Posted by: Guest on December-04-2021
0

select non nan values python

df[~np.isnan(df)]
Posted by: Guest on March-19-2020
0

Identify Null and NAN python

import pandas as pd
pd.isnull(df.columnName).sum()
pd.notnull(df.columnName).sum()
Posted by: Guest on June-04-2021

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