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Article <Jay-20240519173201@ram.dialup.fu-berlin.de>
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From: ram@zedat.fu-berlin.de (Stefan Ram)
Newsgroups: comp.lang.python
Subject: Re: help: pandas and 2d table
Date: 19 May 2024 16:32:50 GMT
Organization: Stefan Ram
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ram@zedat.fu-berlin.de (Stefan Ram) wrote or quoted:
>row-col-addresses of a all the non-NaN values. The general
>meaning of "stack" might be the most complex operation of
>this script. It's explained in the pandas manual (see there).

  Jay Alammar knocked it out of the park with a killer website
  called "Visualizing Pandas' Pivoting and Reshaping" that takes
  a deep dive into "pivot", "melt", "stack" and "unstack".