R 3.2.3 (codename “Wooden Christmas Tree”) was released several days ago. You can get the latest binaries version from here. (or the .tar.gz source code from here). The full list of new features and bug fixes is provided below.
Major changes in R 3.2.3
As highlighted by David Smith, this release makes a few small improvements and bug fixes to R, including:
- Improved support for users of the Windows OS in time zones, OS version identification, FTP connections, and printing (in the GUI).
- Performance improvements and more support for long vectors in some functions including which.max
- Improved accuracy for the Chi-Square distribution functions in some extreme cases
Upgrading to R 3.2.3 on Windows
If you are using Windows you can easily upgrade to the latest version of R using the installr package. Simply run the following code in Rgui:
install.packages("installr") # install setInternet2(TRUE) installr::updateR() # updating R.
Running “updateR()” will detect if there is a new R version available, and if so it will download+install it (etc.). There is also a step by step tutorial (with screenshots) on how to upgrade R on Windows, using the installr package.
I try to keep the installr package updated and useful, so if you have any suggestions or remarks on the package – you are invited to open an issue in the github page.
- Some recently-added Windows time zone names have been added to the conversion table used to convert these to Olson names. (Including those relating to changes for Russia in Oct 2014, as in PR#16503.)
- (Windows) Compatibility information has been added to the manifests for ‘Rgui.exe’, ‘Rterm.exe’ and ‘Rscript.exe’. This should allow
Sys.info()to report the actual Windows version up to Windows 10.
"wininet"FTP first tries EPSV / PASV mode rather than only using active mode (reported by Dan Tenenbaum).
which.max(x)may be much faster for logical and integer
xand now also work for long vectors.
- The ‘emulation’ part of
tools::texi2dvi()has been somewhat enhanced, including supporting
quiet = TRUE. It can be selected by
texi2dvi = "emulation".(Windows) MiKTeX removed its
texi2dvi.execommand in Sept 2015:
texify.exeif it is not found.
- (Windows only) Shortcuts for printing and saving have been added to menus in
Rgui.exe. (Request of PR#16572.)
loess(..., iterTrace=TRUE)now provides diagnostics for robustness iterations, and the
summary(<loess>)shows slightly more.
- The included version of PCRE has been updated to 8.38, a bug-fix release.
View()now displays nested data frames in a more friendly way. (Request with patch in PR#15915.)
regexpr(pat, x, perl = TRUE)with Python-style named capture did not work correctly when
- The description of dataset
ToothGrowthhas been improved/corrected. (PR#15953)
model.tables(type = "means")and hence
"aov"fits without an intercept term. (PR#16437)
close()now reports the status of a
pipe()connection opened with an explicit
- Coercing a list without names to a data frame is faster if the elements are very long. (PR#16467)
- (Unix-only) Under some rare circumstances piping the output from
R -fcould result in attempting to close the input file twice, possibly crashing the process. (PR#16500)
Sys.info()was out of step with
win.version()and did not report Windows 8.
baseenv()again as in R 3.1.0 and earlier. This also fixes
compilerJIT(3)when used in ‘.Rprofile’.
detach()ing the methods package keeps
.isMethodsDispatchOn()true, as long as the methods namespace is not unloaded.
- Removed some spurious warnings from
configureabout the preprocessor not finding header files. (PR#15989)
rchisq(*, df=0, ncp=0)now returns
dchisq(*, df=0, ncp=*)also no longer returns
NaNin limit cases (where the limit is unique). (PR#16521)
pchisq(*, df=0, ncp > 0, log.p=TRUE)no longer underflows (for ncp > ~60).
nchar(x, "w")returned -1 for characters it did not know about (e.g. zero-width spaces): it now assumes 1. It now knows about most zero-width characters and a few more double-width characters.
- Help for
which.min()is now more precise about behavior with logical arguments. (PR#16532)
- The print width of character strings marked as
"bytes"was in some cases computed incorrectly.
abbreviate()did not give names to the return value if
minlengthwas zero, unlike when it was positive.
- (Windows only)
dir.create()did not always warn when it failed to create a directory. (PR#16537)
- When operating in a non-UTF-8 multibyte locale (e.g. an East Asian locale on Windows),
grep()and related functions did not handle UTF-8 strings properly. (PR#16264)
read.dcf()sometimes misread lines longer than 8191 characters. (Reported by Hervé Pagès with a patch.)
within(df, ..)no longer drops columns whose name start with a
- The built-in
HTTPserver converted entire
Content-Typeto lowercase including parameters which can cause issues for multi-part form boundaries (PR#16541).
- Modifying slots of S4 objects could fail when the methods package was not attached. (PR#16545)
splineDesign(*, outer.ok=TRUE)(splines) is better now (PR#16549), and
sparse=TRUEfor speedup with non-small sizes.
- If the expression in the traceback was too long,
traceback()did not report the source line number. (Patch by Kirill Müller.)
- The browser did not truncate the display of the function when exiting with
bs(*, Boundary.knots=)had boundary knots inside the data range, extrapolation was somewhat off. (Patch by Trevor Hastie.)
factorarguments which are deprecated now. (PR#16564)
loess(*, weights = *)stored wrong weights and hence gave slightly wrong predictions for
aperm(a, *)now preserves
poly(x, ..)now works when either
coefis specified. (PR#16597)
data(package=*)is more careful in determining the path.
prettyNum(*, decimal.mark, big.mark): fixed bug introduced when fixing PR#16411.
INSTALLATION and INCLUDED SOFTWARE
- The included configuration code for
libintlhas been updated to that from
gettextversion 0.19.5.1 — this should only affect how an external library is detected (and the only known instance is under OpenBSD). (Wish of PR#16464.)
configurehas a new argument –disable-java to disable the checks for Java.
MAIN_LDFLAGShas been changed for the FreeBSD, NetBSD and Hurd OSes to one more likely to work with compilers other than
gcc(FreeBSD 10 defaults to
configurenow supports the OpenMP flags -fopenmp=libomp (clang) and -qopenmp (Intel C).
- Various macros can be set to override the default behaviour of
configurewhen detecting OpenMP: see file ‘config.site’.
- Source installation on Windows has been modified to allow for MiKTeX installations without
texi2dvi.exe. See file ‘MkRules.dist’.