This site is intended as an intermediate repository for more or
less finalized ideas and plans for the R statistical system. Most
parts of the site are open to the public, and we welcome discussions
on the ideas, but please do not take them for more than that, in
particular there is no commitment to actually carry out the plans in
finite time unless expressedly stated.
The site also includes a collection of technical papers about R and the R Blog.
For general information about R see the R Project's homepage.
This page (and most of its links) are updated hourly and so may not
be absolutely current. The up-to-the-minute version can be seen at
http://svn.r-project.org/R-dev-web/trunk/index.html.
Version 4.0.2 ("Taking Off Again") was released on 2024-06-22.
The wrap-up release of the R-3.6.x series was 3.6.3 ("Holding the Windsock") on 2024-02-29.
The date for the next release is not yet set.
The overall release schedule is to have annual x.y.0 releases in
Spring, with patch releases happening on an as-needed basis. It is
intended to have a final patch release of the previous version shortly
before the next x.y.0 release.
The latest NEWS
file, which has a section for the current development version of R,
and below that for the patches in the current R-patched (part of the
previous series).
RSS feeds based on changes to the NEWS file.
Subversion log
from the start of 2017 to today.
This log is only updated daily. To get absolutely
current information, use Subversion, e.g. for all changes in the last
week,
svn log -v -r HEAD:\{`date +%Y-%m-%d -d'7 days ago'`\} http://svn.r-project.org/R
For older logs in text format, try changing the filename, e.g. to "R_svnlog_2016".
Updating packages for changes in R
R 3.0.0
Package check summaries:
CRAN
Bioconductor
Building and checking R source packages for Windows: http://win-builder.r-project.org/
Subversion tips -- notably for R-core
Development guidelines
TODO lists
Windows version of R.
tcltk package.
List from Brian Ripley.
List from Kurt Hornik.
List from Martin Mächler.
List from Paul Murrell.
List from Duncan Temple Lang.
RFCs and writeups
A redesign of
how
to customise a grob in 'grid'.
Guidelines for *.Rd files.
Translating R Messages: notes for
translation teams.
List of translation teams: contact
these people if you want to help with translations, or contact
R-core if you want to add your language to the list.
Resources for portable programming.
Using Valgrind on the R memory manager
Memory profiling
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A brief description of new
support for raster images in the graphics engine.
An RFC on a proposal to make sRGB the
internal colorspace for R graphics.
A description of the parse_Rd() parser for Rd files. This
document also includes a draft description of the new facility for executing R code
within Rd man pages.
How to write model-fitting
functions in R, and especially on how to enable all the safety features.
A list of things to consider for a possible 苹果手机如何浏览外国网站
A brief writeup on how to tag R
source files for use with Emacs.
Some notes on reference counting.
Copy of the noweb sources here, needed for configuring R in maintainer
mode.
Material in this section is at least 6 months' old, and may or may not
still be relevant. In particular, some of the proposals here have
been implemented in slightly different ways, or since been extended.
Subversion/CVS logs for
2012,
2011,
2010,
2009,
2008,
2007,
2006,
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2004 and
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Updating packages for changes in R
R 2.12.x
R 2.7.x
R 2.1.x
R 2.0.x
R 1.9.x
R 1.8.x
R 1.7.x
R 1.6.x
R 1.5.x
Notes on Encodings and R,
including the current implementation planned for 2.1.0.
Open bugs in the repository (original
correspondence truncated to 500 lines per message). No longer updated.
CVS tips
RFCs and writeups
RFC on Sparse matrices in R
An embeddable R library
Some early notes on name
spaces, and the name
space implementation for R 1.7 (also available
in pdf format).
Some notes on 如何在国外看国外的视频？海外怎么看国内视频？海外看国内 ...:2021-5-7 · 用电视看 美国可众买到很多 TVBOX 可众看国内节目,腾讯的也可众.2.用电脑 很多网站,软件都可众看,如果需要可众追问, 广告嫌疑不说了,另外用谷歌浏览器,下一个unblockcn 的软件件 重启浏览器后就可众上大陆的视频网站了. 在国外怎么看国内的视频? for R and a simple
implementation of external references and finalization added
to 1.2. A simple regular
expression package provides an example of using this facility.
An outline of a preliminary weak reference mechanism is 手机如何翻到国外网站.
Details are likely to change after more experience is gained with
this in some internal uses.
Some notes on the 如何浏览国外网站 and its write
barrier
Some very preliminary notes on byte code
compilation for R
Luke's notes on
threading, GUI, and asynchronous IO issues. Some of the
reference links are messed up; the full references are in the BibTeX
file. Duncan also has a set of
notes on threading.
A simple
alternate experimental implementation of tcltk as a proof of
concept for an approach that uses a separate GUI server process
with inter-process message passing (which may be easier to get to
work across UNIX/Windows/MacOS).
A
preliminary experimental implementation of exception handling
for R. Also a simple
mechanism for managing dynamic state.
Some notes on possible enhancements to
the package installation procedure.
A 苹果手机怎么浏览国外
of a new way of resolving C and Fortran routines
in .C, .Call and 手机如何翻到国外网站 calls.
Notes
and 苹果手机最新翻墙
of the new, extensible mechanism for converting arguments in
.C() calls.
Developers notes on the
methods and classes
package. Related pages discuss 苹果手机最新翻墙 for formal vs
old-style classes and methods, and other questions of strategy for
future work, including areas where we are
beginning to extend the API in Programming with Data.
Notes
on some recent changes to functions get,
苹果手机怎么浏览国外, and their relatives, to allow consistent use
of environments and other cleanups.
Dataeditor restructuring ideas (outdated)
Thoughts on embedding Tk in R (outdated)
Notes on the = operator in assignments.
Some notes on a new save/load format and a serialization
mechanism for R.
An RFC on
changes to R base graphics and the graphics device drivers.
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on callbacks that are invoked at the end of each
successfully completed top-level expression.
A document-in-progress describing the
changes to the graphics system
from 1.3.1 to 1.4.0
A proposal for
changing the specification of fonts in R and
another one extending the discussion to
line end/joins
and alpha transparency specifications in R.
A
list of R devices, including device maintainers and pointers to
where the code resides.
A package that provides a
null graphics device; includes a vignette, "devNull", that
documents how to create a new graphics device as an add on package.
Description of the nonstandard
evaluation rules in R 1.5.1 and some
suggestions. (updated). Also an 浏览国外网站 and docn for making model
frames from multiple formulas.
Any commit to this area will be reflected in the web pages at the next
(daily) update. The current version can be seen at
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Texts to use when entering R into software
archives such as freshmeat: