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Which of the following is the second goal of PCA?

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Which of the following is the second goal of PCA?

(a) data compression

(b) statistical analysis

(c) data dredging

(d) all of the mentioned

This question was posed to me in class test.

Enquiry is from Graphics Devices topic in division Data Analysis and Research of Data Science

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Best answer
Correct option is (a) data compression

For explanation: The principal components are equal to the right singular values if you first scale the variables.

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