Pandas DataFrame isnull() Method
Example
Replace all values in the DataFrame with True for NULL values, otherwise False:
In this example we use a .csv file called data.csv
import pandas as pd
df = pd.read_csv('data.csv')
newdf = df.isnull()
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Definition and Usage
The isnull() method returns a DataFrame object
where all the values are replaced with a Boolean value True for NULL values, and otherwise False.
Syntax
dataframe.isnull()
Parameters
This method takes no parameters.
Return Value
A DataFrame with Boolean values.
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