Software-update: R versie 4.5.3

R is een ontwikkelomgeving en programmeertaal voor statistische en data-analysedoeleinden. Het werd oorspronkelijk ontworpen door Ross Ihaka en Robert Gentleman (vandaar de naam R) aan de Universiteit van Auckland, Nieuw-Zeeland. In R is programmeren sterk objectgeoriënteerd en de functionaliteit kan uitgebreid worden via packages die onder andere via cran beschikbaar worden gesteld. Het R-coreteam, dat zich vandaag de dag bezighoudt met de doorontwikkeling, heeft versie 4.5.3 uitgebracht met de titel Reassured Reassurer. De changelog van deze uitgave ziet er als volgt uit:

Utilities:

tools/fetch-recommended can be used instead of tools/rsync-recommended to fetch recommended packages into R sources using curl on systems without rsync or behind firewalls.

tools/fetch-recommended can be used instead of tools/rsync-recommended to fetch recommended packages into R sources using curl on systems without rsync or behind firewalls.

Package Installation:

C++ standard specifications (CXX_STD = in src/Makevars* and in the SystemRequirements field of the DESCRIPTION file) are now checked more thoroughly. Invalid values are still ignored but now give a warning, as do contradictory specifications.(Preliminary) support for C++26 has been extended to Windows.A non-zero exit status from cleanup, cleanup.win or cleanup.ucrt, if requested via options --clean or --preclean, is now reported with a warning.

C++ standard specifications (CXX_STD = in src/Makevars* and in the SystemRequirements field of the DESCRIPTION file) are now checked more thoroughly. Invalid values are still ignored but now give a warning, as do contradictory specifications.

(Preliminary) support for C++26 has been extended to Windows.

A non-zero exit status from cleanup, cleanup.win or cleanup.ucrt, if requested via options --clean or --preclean, is now reported with a warning.

Bug Fixes:

all.equal(obj, simple, check.class=FALSE) now is true, also when simple is a bare atomic vector and obj has a simple class, fixing the first part of PR#18971 thanks to Jan Gorecki.str(x, give.attr=FALSE) no longer shows attributes when x is a zero length "Date" or "POSIXt" object.Tweaks to binning for bw.SJ() and bw.ucv() in the very rare case of data which have an extremely small range compared to their absolute values, e.g., x <- 6e9 + 6:9.Formatting book-type bibentry objects now converts LaTeX accents also in the publisher and series fields.model.frame(~1, list(), na.action=na.pass) and similar “border-line” uses no longer produce invalid data frames, fixing PR#18977, reported with patch by Mikael Jagan.length() <- v is more careful about balancing, notably when v is not integer, thanks to Suharto Anggono's remarks on the mailing list R-devel.approx(, , na.rm = FALSE) now should always call the ties() function, fixing PR#17604 reported by Bill Dunlap.besselJ(1, 1e-15) and similar now give correct results, thanks to Leo Mada and other “R-help”ers.vignette(::) is now a documented usage variant and confines vignette retrieval to the specified package.pretty(ch) again correctly works with ch a character vector of numbers.persp() labels the three axes correctly also when C level atan2pi() is available, fixing PR#19007 by Klaus Schliep.Large (tall) subscripts in plotmath expressions are now positioned correctly. They were being positioned too high.Ops group (Arith, Compare,..) methods for matrix-"ts" now do return (zero length) matrices even when the two series do not overlap, a very partial fix of PR#18972 which is to be fully addressed later.

all.equal(obj, simple, check.class=FALSE) now is true, also when simple is a bare atomic vector and obj has a simple class, fixing the first part of PR#18971 thanks to Jan Gorecki.

str(x, give.attr=FALSE) no longer shows attributes when x is a zero length "Date" or "POSIXt" object.

Tweaks to binning for bw.SJ() and bw.ucv() in the very rare case of data which have an extremely small range compared to their absolute values, e.g., x <- 6e9 + 6:9.

Formatting book-type bibentry objects now converts LaTeX accents also in the publisher and series fields.

model.frame(~1, list(), na.action=na.pass) and similar “border-line” uses no longer produce invalid data frames, fixing PR#18977, reported with patch by Mikael Jagan.

length() <- v is more careful about balancing, notably when v is not integer, thanks to Suharto Anggono's remarks on the mailing list R-devel.

approx(, , na.rm = FALSE) now should always call the ties() function, fixing PR#17604 reported by Bill Dunlap.

besselJ(1, 1e-15) and similar now give correct results, thanks to Leo Mada and other “R-help”ers.

vignette(::) is now a documented usage variant and confines vignette retrieval to the specified package.

pretty(ch) again correctly works with ch a character vector of numbers.

persp() labels the three axes correctly also when C level atan2pi() is available, fixing PR#19007 by Klaus Schliep.

Large (tall) subscripts in plotmath expressions are now positioned correctly. They were being positioned too high.

Ops group (Arith, Compare,..) methods for matrix-"ts" now do return (zero length) matrices even when the two series do not overlap, a very partial fix of PR#18972 which is to be fully addressed later.

Source: Tweakers.net