Andrew Caird over at For the Love of Suffering has a nice post on how to use Python and Org mode to visualize data. As usual with this sort of thing, Caird leverages Org Babel to integrate a Python script directly into an Org file.
The data is in an Org table. That makes it easy to enter/import it and also to perform light-weight spread sheet operations on the data. Once the table data is complete, the Python code is invoked to produce a plot.
Lots of people are using Python these days so this post will be useful as a go-by for those wanting to use it to massage or plot data with Python/Org. Definitely worth spending a a couple of minutes to give it a read.