Greg Ridgeway

Greg Ridgeway

1 packages on CRAN

1 packages on GitHub

gbm3

github
99.99th

Percentile

Extensions to Freund and Schapire's AdaBoost algorithm and Friedman's gradient boosting machine. Includes regression methods for least squares, absolute loss, t-distribution loss, quantile regression, logistic, Poisson, Cox proportional hazards partial likelihood, AdaBoost exponential loss, Huberized hinge loss, and Learning to Rank measures (LambdaMART).

twang

cran
99.99th

Percentile

Provides functions for propensity score estimating and weighting, nonresponse weighting, and diagnosis of the weights.