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.