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[UFLDL Exercise] PCA in 2D

I’m learning Prof. Andrew Ng’s Unsupervised Feature Learning and Deep Learning tutorial, This is part 1 of the 3rd exercise, which is use PCA algorithm in a simple 2D dataset. Just like my other UFLDL exercise posts, I’ll not go through the detail of the material. More details about this exercise can be found HERE.

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