Python, Pandas, Data Science, Machine Learning, Pandas Dataframe.
± 4.38 ms per loop (mean ± std. dev. of 7 runs, 10 loops each) df_grouped = df.groupby("Car") %timeit df_grouped.get_group("Mercedes") #14.8 ms ± 167 µs per loop (mean ± std. dev. of 7 runs, 1 loop each) Grouping processes take longer than standard operations. However, for frequent filtering on