How to subtract off the mean for each dimension in a multi-dimension data?

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cat0530
cat0530 on 21 Mar 2016
Hi. So I want to calculate PCA for a large number of samples. I have no problem subtracting off the mean for audio samples since audio only has 2 dimensions and I can easily use a `for` loop .However, this is a different case for video since each video sample has about 18-20 dimensions. How can I compute this?

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