Q. Which of the following is a reasonable way to select the number ofprincipal components "k"? (Solved)

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 metho

  • a. Choose k to be the smallest value so that at least 99% of the varinace is retained.
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