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perfectionm1ng
perfectionm1ng
09:10
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Q: Has this Principal Component Analysis (PCA) been done correctly?

perfectionm1ngI have a set of 3D data points, indicated by the blue color in the picture below. I then project them onto the x-y plane, i.e. setting z values of all the points to 0, shown by the yellow color below. Then, I perform PCA on the 2D data points (the yellow ones). I end up with the 1st Principal ...

linear-algebra analysis vector-spaces eigenvectors

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