StatQuest: PCA - Practical Tips

This is a follow-up video for StatQuest: Principal Component Analysis (PCA), Step-by-Step    • StatQuest: Principal Component Analys...  

In it, I give practical advice about the need to scale your data, the need to center your data, and how many principal components you should expect to get.

If you are interested in doing PCA in R see:    • StatQuest: PCA in R  

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0:00 Awesome song and introduction
0:47 Make sure the data are on the same scale
2:53 Make sure the data are centered
3:30 How to determine the number of principal components


#statquest #PCA #ML