Pandas DataFrame isin() Method. Table Of Contents: Syntax isin( ) Method. Examples isin( ) Method. (1) Syntax: DataFrame.isin(values) Description: The isin() method checks if the Dataframe contains the specified value(s). It returns a DataFrame similar to the original DataFrame, but the original values have been replaced with True if the value was one of the specified values, otherwise False. Parameters: values: iterable, Series, DataFrame or dict –  – The result will only be true at a location if all the labels match. If values is a Series, that’s the index. If values is a dict, the keys must be the column names, which must match. If values is a DataFrame, then

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