Journal of Quality and Reliability Engineering / 2015 / Article / Alg 2

Research Article

Variable Selection Methods for Right-Censored Time-to-Event Data with High-Dimensional Covariates

Algorithm 2

NTS (C) algorithm.
Step  1. for = 1 to do
Step  2.  Compose the dataset for variable set in including variables where = 1 to
Step  3.  Calculate over the dataset
Step  4.  Compare and with log-rank test
Step  5.  Save the test score for variables in subset as
Step  6. end for
Step  7. Assume = as the reverse variable efficiency vector where initially each array
   as the cumulative contribution score corresponding to a variable is zero
Step  8. for = 1 to do
Step  9.  for = 1 to do
Step  10.   Add the value of to the cumulative contribution score of the variable based
      on its identification number =
    end for
Step  11. end for
Step  12. Return = as the variable inefficiency vector

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