PCA : the math - step-by-step with a simple example

You can buy the corresponding PDF of this video at:

In this second video about PCA, we will have a look at its math (the eigendecomposition). We will compute the PCA based on the eigenvectors of the covariance matrix.

[saifqawasmeh]

You're probably the only one on the Internet who explained PCA mathematically! Thank you so much!

[abebawt]

After I watch this video, I feel like everyone else make PCA complicated, deliberately. Thank you for making it easy!

[ronaldkanyepi]

This is the best PCA video l have found.

[scottzeta]

This video is totally underated. If my uni's lecture is even half good as yours, I won't spend so much time.

[aindrilasaha]

Trust me after having spent hours on google and youtube, this is the best thing that i found on PCA, hats off to you and thanks a lot!!
Wish you all the best for your channel.

[michaeldouglas]

I would like to sincerely thank you for this video. Almost all YT maths videos only focus on the high level concepts. Finding a linear, step by step explication of the process is rare. Please do make more of these videos. Others I would love to see are: a step by step of one of the GLM's (logistic?), a SBS of gaussian process, and maybe a step by step of factor analysis. Thanks again

[RayRay-ytpe]

I can't believe the concept can be explained this simply! Nice one! You have a new subscriber. I honestly think it's criminal that something this simple is made overly convoluted by other individuals.

[ramkumargorre]

This is one of the best videos explained the PCA concept mathematically.

[sefatergbashi]

Best lecture on PCA calculations so far!
Thank you

[randbak]

totally underrated video I've been searching for a simple yet informative explanation of PCA and you are the best you should be the top on on the search . thank you

[crickethighlight]

Tomorrow will be my quiz I had not even attend the lecture but after watching your tutorial I am ready for quiz so Thanks 🙏

[endritgooglekonto]

best tutorial ever on PCA I have ever found!

[sakkariyaibrahim]

Great lecture. Best explanation of PCA that I could find in internet

[wlt]

Thanks for this nice video, best explaination of PCA. Others just explain without showing the calculation.

[sasakevin]

Your video gave me 100% understanding of PCA, before that, I know nothing about PCA. Thank you!

[notknown]

Best PCA video I have seen at this platform. Well done - Greetings from Germany

[mohdzoubi]

It is a great video. The corresponding PDF file of this video is also great .Thank you very much.

[firstkaransingh]

Excellent explanation of a very complex topic.
Please do try to explain the SVD procedure if you can.
Thanks 👍

[NatnichaSujarae]

you're a life saver! I've been trying to understand this for and this is the only video that nailed it! Thank you so muchhh

[shankars]

You are the best TileStats. I love you a lot man!