Comment by world2vec
3 days ago
I'm old enough that I got my Lean Six Sigma Green Belt certification and used Minitab (!!!) to do a statistical process control project on some investment banking back office process that was being automated.
Does anyone here even remember Minitab? You kids and your newfangled Python!
I got a six sigma green belt using minitab in ~2018. It's still in use and getting updates, for example they now provide an interface to python: https://pypi.org/project/mtbpy/
Minitab had a good SPC toolbox back in the day.
For the longest time, open source solutions were incomplete in the sense that all of them did x-bar/S/R and then usually never got to the more esoteric but handy stuff. Multivariate, even less support.
I had the privilege of working at a JMP shop! It still gives me the warm and fuzzies.
My uni had its manual in its library is all I can say :)