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partDSA 0.9.15

Bug fixes

• Bagged (“leafy”) partDSA no longer errors when leafy.random.num.variables.per.split is greater than or equal to the number of predictors; the random variable subset (“mtry”) is now capped at the number of predictors.

• trim() on a partDSA object now actually trims the inherited fields (IkPn, coefficients, IkPn.risks, var.importance). Previously the result of the inherited dsa trim method was discarded, so only the partDSA-specific fields were shortened.

• loss.function = "DR" for censored outcomes now fails with a clear message (it was never implemented and previously raised a cryptic “object ‘get.overall.risk’ not found”).

• Survival fits no longer print a spurious n == length(y)%/%2 is not TRUE error to the console. The internal per-partition outcome list relied on length(<Surv>) returning 2n; modern versions of the survival package return n, which silently disabled $datalist (and therefore dumpDSA() / showDSA() for survival outcomes). It now uses NROW().

• The Integrated Brier Score reported for multiple time points is now a proper, normalized score. Previously the per-time-point Brier scores were summed (default IBS.wt = rep(1, length(brier.vec))), inflating the reported value by roughly the number of time points and pushing it outside the valid [0, 0.25] range in both mean.cv.risk.DSA and test.set.risk.DSA. The default now uses trapezoidal weights that sum to 1 and normalize by the time range. Single-time-point behavior is unchanged; explicitly supplied IBS.wt is respected (and aligned to the now-sorted brier.vec).

Infrastructure / CRAN

• Migrated DESCRIPTION from the deprecated Author:/Maintainer: fields to Authors@R.
• Updated inst/CITATION from the old-style citEntry() / personList() to bibentry() / person().
• Renamed the internal helper split.fx() to find.split.fx() so it is no longer mistaken for an unregistered S3 method of the base split() generic.
• Added a testthat test suite (tests/testthat/).
• Vignettes: use the canonical CRAN package URL in the bibliography, and set a real \Address/\URL so the JSS link/to/webpage placeholder is no longer emitted into the PDFs. Removed a redundant data(GBSG2) call in the survival vignette.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.