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Mr. Dubey • 52.30K Points
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Q. Which of the following is a reasonable way to select the number of principal components "k"?

  • (A) choose k to be the smallest value so that at least 99% of the varinace is retained. - answer
  • (B) choose k to be 99% of m (k = 0.99*m, rounded to the nearest integer).
  • (C) choose k to be the largest value so that 99% of the variance is retained.
  • (D) use the elbow method

Correct answer: Option(A)

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