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Check if a value is nan pandas

Count nan pandas

#Python, pandas
#Count missing values for each column of the dataframe df

df.isnull().sum()

15

Source: thispointer.com

To detect if a data frame has nan values

df.isnull().sum().sum()
5

4

Source: stackoverflow.com

To detect if a data frame has nan values

> df.isnull().any().any()
True

3

Source: stackoverflow.com

Check if a value in dataframe is nan

#return a subset of the dataframe where the column name value == NaN 
df.loc[df['column name'].isnull() == True]

1

Find nan values in a column pandas

df['your column name'].isnull().values.any()

0

Source: datatofish.com

Check if a value is nan pandas

import numpy as np
import pandas as pd

val = np.nan

print(pd.isnull(val))
# True

0

Source: kite.com

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