Applied Principal Component Analysis in R

===== Likes: 413 👍: Dislikes: 7 👎: 98.333% : Updated on 01-21-2023 11:57:17 EST =====
Theory and Application for Principal Component Analysis

Thanks for watching! Let me know what you think. Are there any issues? Please let me know in the comments below.

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Github link for code & Follow along!

0:00 - Intro
0:26 - Theory behind PCA (No math)
2:45 - Exploring Data
3:55 - Princomp package
8:38 - Screeplot
10:17 - Scores
10:50 - Prcomp package
12:43 - Principal package

[nicholaslewis]

Thank you for doing such a straight forward and simple video. No one seems to have a video with PCA and Eigenvalues in real application to a dataset

[AndrzejFLena]

Bloody love your channel mate - thanks for all your great work! Peace from UK :D

[joshpoland]

This is so incredibly helpful. Thank you!

[andrewdelgado]

Dude you're a lifesaver for these videos! THANK YOU! - Clinical Research PhD Student

[marlonedy]

Thank you for sharing your knowledge. You could make a video about RDA and CCA. Greetings from Ecuador 🇪🇨🙋‍♂️

[davekimmerle]

Hey Spencer, great video, keep up the good work!
I wanted to ask again if you have an academic article, paper or book that I could cite in my thesis when I do PCA?

[fishfish]

Where is the next part? I love your work

[oliesting]

Very great video! Hope you will do more tutorials in R. Do you use stepAIC to do feature importance? How is AIC method different from PCA method? Thank you!

[adriantyanandya]

Hello Spancer. First I want to thank you for your great video. I have a question, why i can't use 'princomp' for the reason "can only be used with more units than variables" . Is there a solution to solve it? Thank you.

[chiennguyenminh]

Hi, I wonder how you can do autocomplete variable so fast? In 11:02

[menoknow]

Hi Spencer, great video! I was wondering if you could use PCA for binary data? I see that the bot.canine feature is binary. Thanks!

[kx]

How do we construct an Index with PCA? Do we multiply the raw data of each column with the proportion variation and sum them up?

[adityapratapsingh]

Does having a categorical variable along with continuous variables make any difference? What modifications are needed in the analysis if the dataset is so? Thank you.

[MarinaUganda]

I have beent rying to plot a biplot of the varimax rotated components. Is this possible?

[ajaydhungana]

Does number of entry among columns matters or not?

[asirbillah]

Hello, would you plz tell whether its possible for me to pursue MS in ML/DL in a good US uni if I have 3.5ish cgpa in undergrad?

[Aaarya]

how to analyze principal components using variance values ?.

[muhammadzubairchishti]

Dear Respected Professor! Thank you so much for providing us free knowledge. I highly appreciate your precious efforts. Kindly please give me your email address since I want to send my issue regarding R codes to you. Thank you.