Slice well
In this post, I briefly review a few methods to select rows and/or columns of a DataFrame that satisfy one or more criteria. I then introduce two additional requirements that arises frequently in practice–slicing with previously unknown criteria and managing serialization and deserialization to recover the desired data structure. Lever multiIndexes I often find pandas’ multiIndex to be helpful, although I do not observe it used very often. With a multi-indexed DataFrame, pandas’ ....