def get_summary(df_combined):
    """
    Takes in combined DataFrame object, and calculates summary statistics for every location and pollutant type

    Arguments:
    df_combined -- (DataFrame) Input dataset
    """

    summary_stats = df_combined.groupby(["STATION_NAME", "PARAMETER"]).agg({"RAW_VALUE": ["max", "min", "mean", "median", "std", "var"]})
    return summary_stats