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How to reduce the dimensions of a row vector?

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Yashaswini MU
Yashaswini MU on 29 Feb 2016
Answered: John D'Errico on 2 Mar 2016
Hi, I have a row vector of dimensions 1*2500. I want to extract features from this vector and reduce the dimensions of the vector using PCA. Can someone please give me the matlab code for it?
Thank U.

Answers (2)

Roger Wohlwend
Roger Wohlwend on 2 Mar 2016
You cannot apply PCA on a vector. You need a matrix for that.

John D'Errico
John D'Errico on 2 Mar 2016
PCA is meaningless as applied to a single vector.
So, you need to either learn what PCA is (read one of books on the subject) or go back to the person who told you to do this, and ask them what they really meant for you to do.

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