StatQuest: PCA in R, Clearly Explained!!!
You might also want to know a few practical tips when doing PCA:
Here’s a link to the source code on the StatQuest GitHub.
StatQuest: Multiple Regression in R
Here’s the link to the sample code on the StatQuest GitHub.
StatQuest: GLMs Pt.3 – Design Matrix Examples in R
Here’s the link to the code on the StaQuest GitHub.