The odd story of the Standardized Z-score tool - it's arguably "hidden" but the support articles behind it have disappeared too! Which sparked my curiosity. There are multiple forum threads asking for this exact tool that don't figure out it already exists. Given the folder it exists in, it's obviously a supporting macro built to go into some other standard predictive tool, I'm not sure which one. But this standardized z-score macro itself is useful enough it should be included in the tool palette too.
I accidentally removed it from a workflow I had previously managed to put it into, and then it took me half an hour to figure out where to find it again, even armed with the fore-knowledge that it existed.
The other weird thing is that in the 2018 youtube video where I learned about it, there's results in the search bar for the Standardized Z-score tool, and it leads to a help.alteryx.com article. But those seem to be removed now, even though the Standardized Z-score tool is still packaged with the software
