How to group a Pandas DataFrame by multiple columns in Python

Grouping a pandas.DataFrame by columns a and b creates groups consisting of rows which have the same value in a and b.

Solution for How to group a Pandas DataFrame by multiple columns in Python : You can use pandas.DataFrame.groupby() to group a DataFrame by multiple columns Call DataFrame.groupby(by) with by as a column name or list of column names to group the rows of DataFrame by the specified column or columns by.


how-to-group-a-pandas-dataframe-by-multiple-columns-in-python