R help - Dec 2009 - randomSurvivalForest 3.6.0 now available on CRAN

Please find release 3.6.0 of the package "randomSurvivalForest" now
available for download on CRAN.

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CHANGES TO RELEASE ?3.6.0

RELEASE 3.6.0 represents the last and final major upgrade
of this product. ?Current and future functionality will migrate to the
new CRAN package, Random Forests for Survival, Regression, and
Classification, that will be released in the coming months.

Key changes to the current release are as follows:

o The ability to fully analyze competing risk data including ensemble
?estimation, error rates, and VIMP by event type. ?Can also predict
?on test data. ?Missing data imputation is also available. See rsf()
?and competing.risk() for details.

o Automatic variable selection using minimal depth theory implemented
?in the new function varSel(). ?Also see the core function
?max.subtree().

o Pairwise interactions between variables using minimal depth theory.
?See find.interaction() for more details.

o The ability to analyze mean minimal depth information by individual
?(for variable selection at the individual level). See the
?documentation for rsf() for more information.

o Impute only mode for extremely fast imputation of data. ?See the
?documentation for impute.rsf() fro more details.

o The ability to export forests to a Java (JUNG) based plug-in. ?This
?allows one to visualize individual trees in the forest. See the
?documentation for rsf2rfz() for more information.

o Modification to random splitting to grow deeper trees.

o Fix of memory leak in INTERACTION mode. ?Thanks to Xi Chen for
?finding this feature. ?Other miscellaneous bug fixes.

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udaya at kogalur-shear.com
919-824-9825

Udaya B. Kogalur, Ph.D.
Adjunct Staff, Dept of Quantitative Health Sciences, Cleveland Clinic Foundation
President, Kogalur Shear Corporation
5425 Nestleway Drive, Suite L1
Clemmons, NC 27012

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