# Distribution of the Review Text Length

Learn how to calculate statistics in pandas and PySpark.

## Calculate the statistics of the review text length in pandas

In pandas, `applymap`

can be used to calculate the length of the review text column. When we calculate the length of text, both frameworks throw a runtime exception if there are `NaN`

or `None`

values in the column. Therefore, missing values must be filled with inputs before applying any function.

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