Principal Component Analysis Explained

[@marksanda9786]

The best explanation of PCA that I have ever heard, hands down.

[@suhasjadhav1610]

It is one of the most intuitive and crystal clear explanation of PCA concept in less than 10 minutes.

[@j.larrycampbell8195]

Thank you very much, @RayBiotech, for providing this excellent description of PCA!

[@anonymousentity5106]

Thanks! This is amazing!

[@ranjanpal7217]

Amazing explanation

[@leolei9352]

Thanks for clear explanation

[@tafarabute1483]

Good explanation

[@chicanicajfcp]

Wrong! The maximum number of PC's are min(n-1, k). In the example you had 10 samples and 40 attributes. The answer should be

[@RayBiotech]

Thanks for the comment! Yes the last PC will be trivial or nearly 0 when n