similar to: Why cannot `Rscript -e` accept an empty line?

Hi, I guess this issue must have been brought forward long time ago, but I still hope you can consider under Windows (during installation): 1. put R's bin path in the PATH variable of the system so that we can use the commands "R" and "Rscript" more easily; 2. remove the version string like R-2.13.0 in the default installation directory, e.g. only use a directory like

Dear R developers, I asked this question in r-help list but have not got a definite solution yet, and I think it might be more appropriate to ask developers or CRAN maintainers directly. Many software packages often have a menu item like "Check for updates" under the "Help" menu, e.g. Filezilla and Firefox, and I believe it is also necessary for R (at least for R GUI under

Hi, Recently I noticed file.copy() would discard the file mode information. Is this the expected behaviour or a bug for file.copy()? > file.create('testfile') [1] TRUE > file.info('testfile') size isdir mode mtime ctime testfile 0 FALSE 644 2011-03-05 17:06:39 2011-03-05 17:06:39 atime uid gid uname grname

Hi, Recently I noticed file.copy() would discard the file mode information. Is this the expected behaviour or a bug for file.copy()? > file.create('testfile') [1] TRUE > file.info('testfile') size isdir mode mtime ctime testfile 0 FALSE 644 2011-03-05 17:06:39 2011-03-05 17:06:39 atime uid gid uname grname

Hi, I have a function knit_expand() and its source/Rd are below: https://github.com/yihui/knitr/blob/master/R/template.R#L43-L44 https://github.com/yihui/knitr/blob/master/man/knit_expand.Rd When I run R CMD check on the package I get this warning (with both R 2.15.2 and R-devel): * checking for code/documentation mismatches ... WARNING Codoc mismatches from documentation object

Hi, Suppose I have x = parse(text = " {y=50+50+50#'asfasf' } ") now x is an expression with some src attributes. > x expression({y=50+50+50#'asfasf' }) attr(,"srcfile") <text> attr(,"wholeSrcref") {y=50+50+50#'asfasf' } My question is, how can I get my string back (the string passed to parse() as the text argument)? >

Hi, A Windows user asked me a question and I believe this is a bug of R 3.0.0 under Windows: > plot(1:10) > savePlot('test.wmf') Error in .External(C_savePlot, device, filename, type, restoreConsole) : Incorrect number of arguments (4), expecting 3 for 'savePlot' > sessionInfo() R version 3.0.0 (2013-04-03) Platform: x86_64-w64-mingw32/x64 (64-bit) locale: [1]

Hi all, Since roxygen is a great help to document R packages, I am wondering if there exists an approach to go back from the raw Rd files to roxygen-documentation? E.g. turn "\author{Somebody}" into "@author Somebody". This sounds ridiculous, but I believe it helps in the long term for me to maintain R packages. Thanks! Regards, Yihui -- Yihui Xie <xieyihui at

Hi, I observed a slight problem in deparse(): it will add spaces around most operators except /. I wonder if this is easy to fix. I know this is quite trivial, but I will appreciate if / is not treated as an exception. Examples: > deparse(expression(1/1)) [1] "expression(1/1)" > deparse(expression(1+1)) [1] "expression(1 + 1)" > deparse(expression(1%in%1)) [1]

Hi, I'm aware of the definition of a "valid filename" in .SweaveValidFilenameRegexp, but I think it might be better to quote the filename when it contains spaces instead of just giving a warning. This should bring us safer LaTeX code (although I never use spaces in paths). Here is the simple patch: Index: src/library/utils/R/SweaveDrivers.R

Hi, The problem arises when I lazyLoad() the .Random.seed from a previously saved database. To simplify the process of reproducing the problem, see the example below: ## this assignment may not really make sense, but illustrates the problem delayedAssign('.Random.seed', 1L) typeof(.Random.seed) # [1] "integer" rnorm(1) # Error in rnorm(1) : # .Random.seed is not an integer

Hi, The problem arises when I lazyLoad() the .Random.seed from a previously saved database. To simplify the process of reproducing the problem, see the example below: ## this assignment may not really make sense, but illustrates the problem delayedAssign('.Random.seed', 1L) typeof(.Random.seed) # [1] "integer" rnorm(1) # Error in rnorm(1) : # .Random.seed is not an integer

Hi, Here seems to be a corner case in which format() fails: > format(data.frame()) Error in .subset2(x, i, exact = exact) : subscript out of bounds > sessionInfo() R version 3.0.2 (2013-09-25) Platform: x86_64-pc-linux-gnu (64-bit) locale: [1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8 [5] LC_MONETARY=en_US.UTF-8 LC_MESSAGES=en_US.UTF-8

Hi all, We know old.packages() can check for updates of add-on packages, but is there a way to check updates of R itself? "go to R homepage" is a way, of course, but I hope this can be done by R. I'm not sure about the "reliable" place to check; here is a simple example to check from one of the CRAN webpages (kind of nasty approach...): x =

Hi, The imaginary unit is gone in the 'text' column in the returned data frame from getParseData(), e.g. in the example below, perhaps the text should be 1i instead of 1: > p=parse(text='1i') > getParseData(p) line1 col1 line2 col2 id parent token terminal text 1 1 1 1 2 1 2 NUM_CONST TRUE 1 2 1 1 1 2 2 0 expr

On 09/12/2014, 10:36 PM, Yihui Xie wrote: > I took a look at the R source and I realized that the encoding was > actually never passed to the vignette engine: > https://github.com/wch/r-source/blob/e721ef5f4/src/library/tools/R/Vignettes.R#L507 > Apparently only the file and quiet arguments are passed to the > vignette engine. Did I miss anything? I think it's actually a little

Hi all, It is recommended in ?'if' that we use 'else' right after '}' instead of starting a new line, but I noticed deparse() will separate '}' and 'else' when the 'if...else' clause is used inside {...} (e.g. function body). Here is an example: ## if/else inside {} > cat(deparse(parse(text='function(){if (TRUE) {1} else {2}}')),

Hi, I feel the CSS definitions for the HTML help pages are not visually appealing enough. I admit this is a very subjective matter, so I don't have strong arguments for this wishlist, although I wrote my version of R.css with some web design instructions in mind (e.g. use browser-safe sans-serif fonts). Anyway, here is what I've done:

Hi, It seems that anti-aliasing in png(type = 'cairo') is not well supported for the point symbols without boarders, e.g. pch = 16. The Cairo package works well, though. You can compare png() with CairoPNG(): png(): http://i.imgur.com/8niB3jX.png CairoPNG(): http://i.imgur.com/FZBJOxm.png f = function(dev, ..., main = '') { dev(...) plot(c(1, 2, 1, 2), c(1, 1, 2, 2),

Hi, I have spent a few hours on the R-exts manual and the documentation of parse_Rd() (as well as the PDF document in the references), but I still have not figured out what results=rd means. I thought I could use an R code fragment to create an Rd fragment dynamically. Here is an example, in which I was expected the output to be a describe list <DL> in HTML, but it turns out not to be true.