What's new in this version: New features: - The default initialization of the "repos" option from the repositories file at startup can be skipped by setting environment variable R_REPOSITORIES to NULL such that getOption("repos") is empty if not set elsewhere. - qr.X() is now an implicit S4 generic in methods. - iconv(to = "ASCII//TRANSLIT") is emulated using substitution on platforms which do not support it (notably Alpine Linux). This should give a human-readable conversion in ASCII on all platforms (rather than NA_character_). - trans3d() gains options continuous and verbose addressing the problem of possible "wrap around" when projecting too long curves, as reported by Achim Zeileis in PR#18537. - tools::showNonASCII() has been rewritten to work better on macOS 14 (which has a changed implementation of iconv()). - tiff(type = "quartz") (the default on macOS) now warns if compression is specified: it continues to be ignored.
INSTALLATION on a UNIX-ALIKE: - There is some support for building with Intel's LLVM-based compilers on x86_64 Linux, such as (C) icx, (C++) ipcx and (Fortran) ifx from oneAPI 2023.x.y. - There is support for using LLVM's flang-new as the Fortran compiler from LLVM 16.0.x (preferably 17.0.0 or later).
Utilities: - R CMD check reports the use of the Fortran 90 random number generator RANDOM_NUMBER() and the subroutines to initialize it. 'Writing R Extensions' has example code to use R's RNGs from Fortran.
Fixed: - substr(x, n, L) nchar(x) - contrib.url(character()) now returns 0-length character() as documented, which also avoids spurious warnings from available.packages() et al. in the edge case of an empty vector of repository URLs. - readChar(., 4e8) no longer fails - lapply(, as.data.frame) no longer warns falsely for some base vector components. - Communication between parent and child processes in the multicore part of parallel could fail on platforms that do not support an arbitrarily large payload in system functions read()/write() on pipes (seen on macOS where a restriction to INT_MAX bytes is documented, without doing a partial read unlike Linux). The payload is now split into 1Gb chunks to avoid that problem. - qqplot(x,y, conf.level=.) gives better confidence bounds when length(x) != length(y) - norm(, "2") now gives zero instead of an error, as all the other norm types - Build-stage Rd macros packageAuthor and packageMaintainer now process Authors@R, fixing NA results when the package DESCRIPTION omits Author and Maintainer fields. - Formatting and printing complex numbers could give things like 0.1683-0i because of rounding error: -0i is now replaced by +0i. - postscript() refused to accept a title comment containing the letter "W" - isoreg(c(1,Inf)) signals an error instead of segfaulting, fixing PR#18603. - tiff(type = "Xlib") was only outputting the last page of multi-page plots. - tools::latexToUtf8() again knows about ~{n} and other letters with tilde, fixing a regression in R 4.3.0, and about ^{i} as an alternative to ^{i} (similarly with other accents). Furthermore, LaTeX codes for accented I letters are now correctly converted, also fixing related mistakes in tools::encoded_text_to_latex(). - tar(*, tar = "internal") no longer creates out-of-spec tar files in the very rare case of user or group names longer than 32 - bytes, fixing PR#17871 wit - When using the "internal" timezone datetime code, adding a fraction of a second no longer adds one second, fixing PR#16856 - from a patch by Ivan Krylov. - tools::checkRd() no longer produces spurious notes about "unnecessary braces" from multi-line Rd results of Sexpr macros.
R for Windows 4.3.2 相關參考資料
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https://community.rstudio.com
免費軟體下載: R 4.3.3 中文版- 統計學軟體
關鍵字:r for windows. The R Project for Statistical Computing. R is a free software environment for statistical computing and graphics. It compiles and runs ...
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