coxstream: Memory-Efficient Cox Proportional Hazards via Streaming Newton-Raphson

Fits the Cox proportional hazards model using a single descending-order pass per Newton-Raphson iteration. Peak RAM is O(p^2) regardless of the number of rows, making it suitable for datasets that do not fit in memory. Produces identical coefficients to survival::coxph() with Efron tie correction.

Version:	0.1.0
Imports:	Rcpp, survival
LinkingTo:	Rcpp
Suggests:	arrow, testthat (≥ 3.0.0)
Published:	2026-06-20
DOI:	10.32614/CRAN.package.coxstream
Author:	Tommy Carstensen [aut, cre], Apache Software Foundation [cph, ctb] (vendored Arrow C Data/Stream interface header (src/arrow_c_abi.h), Apache-2.0)
Maintainer:	Tommy Carstensen <cran at tommycarstensen.com>
BugReports:	https://github.com/tommycarstensen/coxstream-r/issues
License:	MIT + file LICENSE
Copyright:	see file COPYRIGHTS
URL:	https://github.com/tommycarstensen/coxstream-r
NeedsCompilation:	yes
Materials:	README
CRAN checks:	coxstream results

Documentation:

Reference manual:

coxstream.html , coxstream.pdf

Downloads:

Package source:	coxstream_0.1.0.tar.gz
Windows binaries:	r-devel: coxstream_0.1.0.zip, r-release: coxstream_0.1.0.zip, r-oldrel: coxstream_0.1.0.zip
macOS binaries:	r-release (arm64): coxstream_0.1.0.tgz, r-oldrel (arm64): coxstream_0.1.0.tgz, r-release (x86_64): coxstream_0.1.0.tgz, r-oldrel (x86_64): coxstream_0.1.0.tgz

Linking:

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