gnu: Add r-gbm.

* gnu/packages/cran.scm (r-gbm): New variable.
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Ricardo Wurmus 2019-03-28 18:11:03 +01:00
parent 8473597f80
commit d59df3340b
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@ -13471,3 +13471,30 @@ implementation of an interactive grammar of graphics, taking the best parts of
ggplot2, combining them with the reactive framework of Shiny and drawing web
graphics using Vega.")
(license license:gpl2)))
(define-public r-gbm
(package
(name "r-gbm")
(version "2.1.5")
(source
(origin
(method url-fetch)
(uri (cran-uri "gbm" version))
(sha256
(base32
"0vs6ljaqhwwpgr8wlbhmm4v147rd82kl16rpaijqiylxcc8dxyq6"))))
(build-system r-build-system)
(propagated-inputs
`(("r-gridextra" ,r-gridextra)
("r-lattice" ,r-lattice)
("r-survival" ,r-survival)))
(home-page "https://github.com/gbm-developers/gbm")
(synopsis "Generalized boosted regression models")
(description
"This package is an implementation of extensions to Freund and Schapire's
AdaBoost algorithm and Friedman's gradient boosting machine. It includes
regression methods for least squares, absolute loss, t-distribution loss,
quantile regression, logistic, multinomial logistic, Poisson, Cox proportional
hazards partial likelihood, AdaBoost exponential loss, Huberized hinge loss,
and Learning to Rank measures (LambdaMart).")
(license license:gpl2+)))