Which of the following is a reasonable way to select the number of principal components "k"?

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Which of the following is a reasonable way to select the number of principal components "k"?

1.choose k to be the smallest value so that at least 99% of the varinace is retained.

2.choose k to be 99% of m (k = 0.99*m, rounded to the nearest integer).

3.choose k to be the largest value so that 99% of the variance is retained.

4. use the elbow method

Posted Date:-2022-06-21 03:32:57

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