Hey, Need some help on using PCA on matlab.
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So I'm in my masters thesis and I want to use PCA to understand and analyse a 3D movement (elevation angles of FOOT, SHANK and THIGH segments). I already have all the data (3variables'foot/shank/thigh' of 180 observations) but I just don't know how to get the 3 principal vectors. I tried some scripts but I dont really understand them and it doesnt seem to work. I have no matlab experience and they are no good tutorial that shows exemple of people using there data and getting the results.If anyone could help me out it would be nice :) Thank you.
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Jillian Beacon
on 6 Oct 2019
Did you ever find out how to do this? I am doing something similar in my Ph.D. and I am looking for help with PCA. Would you be willing to chat with me about it?
Accepted Answer
Image Analyst
on 21 Jul 2018
Attached is an example of how to use PCA on a 3-D sample.
6 Comments
Image Analyst
on 23 Jul 2018
Sounds reasonable. Since you're at a university you can get free statistical help. I suggest you enlist a statistics/math professor at your university to be an adviser, either on your committee or maybe just for a few consulting sessions. He or she will be better at stats than me.
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