A general variable selection approach in the presence of missing data in both covariates and outcomes. This approach exploits the flexibility of machine learning modeling techniques and bootstrap imputation, which is amenable to nonparametric methods in which the effect sizes of predictor variables are not naturally defined as in parametric models. Six methods are considered and compared: XGBoost, Random Forests, Conditional Random Forests, Bayesian Additive Regression Trees, lasso, stepwise backward selection.
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R functions of six variable selection methods on complete data
4bdd7b3View on GitHubVariable selection using stepwise backward selection with missing data
e252058View on GitHubR functions of six variable selection methods on complete data
0cebef6View on GitHub