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R 2.1.1 の変更点
o glm() now accepts 1D arrays (e.g. tables) as a response, dropping them to a vector whilst preserving names.
o df() with one infinite df now works (to match pf()).
o Added tclServiceMode() function to the tcltk package to allow updating to be suspended.
o The Encoding: field of a DESCRIPTION file is now documented, and used by packageDescription() and library(help=).
o lm(qr=FALSE) now works.
o predict.glm() not longer loses names for "response" predictions. (PR#7792)
o Typo in menu(graphics=TRUE) meant it failed on Unix if tcltk was not available.
o When names.dist() was removed, the result of cmdscale() lost its rownames. The example also lost the labels.
o read.table() was not handing escaped quotes inside quoted fields in the first five lines of the file. (PR#7789)
It was also not handling correctly EOF in the first five lines when reading from stdin(). (PR#7772)
o make.packages.html() called by help.start() was failing if there were installed packages with help titles invalid in the current locale.
o printCoefmat(signif.legend = FALSE) was non-functional. (PR#7802)
o Some as.date.frame() methods failed because the expression deparsed into multiple lines. (PR#7808)
o Printing arrays/data frames with multibyte characters in the column labels was sometimes misaligned or using excessive space. (PR#7803)
o as.POSIXlt() could give infinite recursion if passed a corrupt "POSIXct" object (generated by an incorrect call to c.POSIXct, PR#7826).
o Printing the result of an unbalanced model.tables() call sometimes got confused if terms() had rearranged interaction terms. (PR#7829)
o .Platform$pkgType was wrong on the CRAN MacOS X build, and .install.macbinary() was missing.
o as.personList() as used by citation() got confused by names containing "and". (PR#7797)
o Subscripting an array by a matrix containing zero or negative values or the wrong number of columns was not handled consistently. (PR#7824)
o select.list(multiple=TRUE) now detects and tries again for invalid text input.
o add1.[g]lm could give strange results with interaction terms when the model and the upper scope had different orders for the main effects. (PR#7842)
o A bug had sneaked into the anova.mlmlist() code, affecting the Greenhouse-Geisser epsilon. Code wrongly assumed a matrix to be symmetric. (Thanks to Bela Bauer.)
o anova.mlmlist() and mauchley.test() are now more tolerant to rank deficiency in the M and X matrices (also when they are implicitly generated via model.matrix()).
o anova.mlm had a scoping issue (PR#7898)
o pf() with infinite df is allowed again. It is now more accurate for extreme ratios of dfs, especially when there is a non-centrality parameter.
o df() was inaccurate for large df (1e16 or greater).
o dt() was inaccurate for large df (1e9 or greater) with a non-centrality parameter.
o runmed(*, algorithm="Turlach") seg.faulted in rare cases.
o strwrap() now makes a reasonable job of text that is invalid in the current locale.
o Reading with encoding "UCS-2LE" will remove any Byte Order Mark, as most implementations of iconv fail to handle BOMs (which are present in 'Windows Unicode' files).
o unique() for a list was incorrectly reporting `unimplemented'.
o The parser's contextstack was not protected against overflow,
e.g. more than 50 unmatched '('. (PR#7859)
o source(file, chdir = TRUE) was not checking that 'file' was a filepath (rather than a URL). For 2.1.0 only, it did not work even if 'file' was a filepath.
o Hershey fonts were being sized based on pixels not points so came
out too small on devices where pixels were noticeably different
from points (e.g., win.printer() and high-resolution screens).
Fix means that default size of Hershey fonts may be slightly different, for example, smaller by default on PostScript and PDF.
o The branch cuts in the complex versions of the inverse trigonometric and hyperbolic functions were non-standard. (PR#7871)
o truncate() on file() connections was limited to files < 2Gb. It now works for larger files at least on 64-bit OSes and others where ftruncate supports such files. (Related to PR#7879)
o proj.aovlist() did not work correctly on objects fitted from a data frame with row names.
o The coding standards recommendations had nuke-trailing-whitespace where newer versions of ESS need ess-nuke-trailing-whitespace. (PR#7888)
o package.skeleton() missed the first newline in the DESCRIPTION file.
o pbirthday() reported p = 1 too often when coincident > 2.
o plot(1:3, exp(1:3), log = "y", ylim = c(30,1)) {reversed
log-scale axis} now works, based on Uwe Ligges' suggestions.
(PR#7894)
o install.packages() was aborting when a package in a bundle was chosen from a menu. It failed if more than one package in a bundle was chosen from the command line.
o qcauchy() suffered from underflow in the extreme tails. (PR#7902)
o Printing of raw matrices/arrays was not implemented. (PR#7912)
o getCallingDLL()'s default first argument did not correspond to its description and has been changed. The mismatch caused symbols in .C/.Call/.Fortran calls without a PACKAGE= argument to be potentially looked up in the wrong namespace.
o Binary save() of raw vectors was not working correctly on big-endian platforms. (PR#7812)
o as.Date.factor() now accepts a format argument.
o Workaround added for FreeBSD which does not have alloca.h _and_ does not allow alloca() to be declared.
o identify() now respects 'cex'. (PR#660)
Warnings from identify() are now printed immediately even on consoles with delayed printing.
