Buckley-James Regression for Survival Data with High-Dimensional Covariates

Buckley-James regression for right-censoring survival data with high-dimensional covariates. Implementations for survival data include boosting with componentwise linear least squares, componentwise smoothing splines, regression trees and MARS. Other high-dimensional tools include penalized regression for survival data. See Wang and Wang (2010) .


            CHANGES in `bujar' VERSION 0.2-5 (01-30-2019)

o changes are made in vignettes/dlbcl.Rnw since the current release of package gbm plot function ignores par(mfrow=()) option. Anyhow, grid.arrange simplies the codes when used with Sweave.

            CHANGES in `bujar' VERSION 0.2-4 (05-17-2018)

o drop bujar-package.Rd in man directory

            CHANGES in `bujar' VERSION 0.2-3 (04-26-2017)

o minor changes to dlbcl.Rnw

            CHANGES in `bujar' VERSION 0.2-1 (12-04-2015)

o predict function is updated o add data-raw for raw data processing R file

            CHANGES in `bujar' VERSION 0.1-10 (12-01-2015)

o mselect is an updated mstop in boosting for each BJ iteration. This was implemented for learner="tree" (with best.iter), now extends to learner="linear.regression" and "pspline". o add rng for bujar function to be used for gbm internally. o add name "Intercept" for twin=TRUE and learner="linear.regression"

            CHANGES in `bujar' VERSION 0.1-9 (11-25-2015)

o move boosting and penalized regression routine to a separate R file o move prediction routine to a separate R file

            CHANGES in `bujar' VERSION 0.1-8 (11-20-2015)

o delete repeated computing pred.bj in bujar.R o fix a bug with coefficients for learner="enet2", "mnet", "snet", due to the bugs in the mpath package

            CHANGES in `bujar' VERSION 0.1-7 (11-04-2015)

o replace R/myglmboost.R with package bst for learner="linear.regression" and twin=TRUE o update NAMESPACE o add twin boosting for learner="pspline" and "tree" o fix a bug of intercept estimate when center=TRUE and learner="linear.regression"

            CHANGES in `bujar' VERSION 0.1-6 (11-04-2015)

o in bujar function, intercept estimation fixed if argument center=TRUE o twin boosting added using myglmboost.R and associated other functions o fixed a bug with learner="pspline" importing bbs function from mboost library

            CHANGES in `bujar' VERSION 0.1-5 (10-27-2015)

o changes since 0.1-4: modify NAMESPACE and Imports to pass R CMD check

            CHANGES in `bujar' VERSION 0.1-2 (12-17-2012)

o learner = "acosso" is no longer supported. The function contain functions svd2 and La.svd2 which call entry points, which no longer exist in R-devel (3.0.0 to be)

            CHANGES in `bujar' VERSION 0.1-1 (01-17-2012)

o added MCP and SCAD variable selection methods

Reference manual

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0.2-9 by Zhu Wang, a year ago

Browse source code at https://github.com/cran/bujar

Authors: Zhu Wang and others

Documentation:   PDF Manual  

Task views: Survival Analysis

GPL-2 license

Imports mda, mpath, mboost, gbm, earth, elasticnet, rms, methods, modeltools, bst, parallel, survival

Suggests TH.data, R.rsp, gridExtra

Suggested by mlr3proba.

See at CRAN