A Modified Random Survival Forest Algorithm
Permutation-based variable importance metric for high dimensional data...
A longitudinal data with diagnostic results for pre-determined time
Simulate error-prone test results for a user-defined vector of test ti...
Permutation-based variable importance metric for high dimensional data...
A covariate matrix
Implements a modification to the Random Survival Forests algorithm for obtaining variable importance in high dimensional datasets. The proposed algorithm is appropriate for settings in which a silent event is observed through sequentially administered, error-prone self-reports or laboratory based diagnostic tests. The modified algorithm incorporates a formal likelihood framework that accommodates sequentially administered, error-prone self-reports or laboratory based diagnostic tests. The original Random Survival Forests algorithm is modified by the introduction of a new splitting criterion based on a likelihood ratio test statistic.