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PySpark Column
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PySpark Column | isNull method
Machine Learning
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schedule Jul 1, 2022
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PySpark Column's isNull()
method identifies rows where the value is null.
Return Value
A PySpark Column (pyspark.sql.column.Column
).
Examples
Consider the following PySpark DataFrame:
+-----+----+| name| age|+-----+----+| Alex| 25|| Bob| 30||Cathy|null|+-----+----+
Identifying rows where certain value is null in PySpark DataFrame
To identify rows where the value for age
is null
:
Getting rows where certain value is null in PySpark DataFrame
To get rows where the value for age
is null
:
Here, the filter(~)
method fetches rows that correspond to True
in the boolean column returned by the isNull()
method.
Published by Isshin Inada
Edited by 0 others
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Official PySpark Documentation
https://spark.apache.org/docs/latest/api/python/reference/api/pyspark.sql.Column.isNull.html
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