Comments¶

1. There are multiple ways to update the index of a DataFrame or Series. First, you can assign a new Series or Index object to the index of a DataFrame or Series. Or you can use methods such as DataFrame.set_index or DataFrame.reset_index. DataFrame.reset_index resets the index of a DataFrame/Series to an integer index starting from 0. The old index is kept by default but can be dropped using the option drop=True

Multi-Index¶