similar to: Possible values for R version status

Great spot, thanks Mark. This really ought to appear somewhere in the ?Quotes help page. Having a warning under Windows might be nicer behaviour than silently returning the wrong value too. On 4 December 2014 at 22:24, Mark van der Loo <mark.vanderloo at gmail.com> wrote: > Richie, > > The R language definition [1] says (10.3.1): > > \Unnnnnnnn \U{nnnnnnnn} > (where

On 25/05/2015 11:37 AM, Ista Zahn wrote: > AFAIK this is the way it works on Windows. It has been discussed in several > places, e.g. > http://stackoverflow.com/questions/17715956/why-do-some-unicode-characters-display-in-matrices-but-not-data-frames-in-r > , > http://stackoverflow.com/questions/17715956/why-do-some-unicode-characters-display-in-matrices-but-not-data-frames-in-r

Here's a data frame with some Unicode symbols (set intersection and union). d <- data.frame(x = "A \u222a B \u2229 C") Printing this data frame under R 3.2.0 patched (r68378) and Windows 7, I see d ## x ## 1 A <U+222A> B n C Printing the column itself works fine. d$x ## [1] A ? B ? C ## Levels: A ? B ? C The encoding is correctly UTF-8.

If I type a character using \U syntax that has more than 4 digits, I get the wrong character. For example, "\U1d4d0" should print a mathematical bold script capital A. See http://www.fileformat.info/info/unicode/char/1d4d0/index.htm On my machine, it prints the Hangul character corresponding to "\Ud4d0" http://www.fileformat.info/info/unicode/char/d4d0/index.htm It seems

If I want to assign some variables into an environment, it seems natural to do something like e <- new.env() within(e, { x <- 1:5 y <- runif(5) } ) This throws an error, since within.environment doesn't exist.? I realise I can work around it using as.environment(within(as.list(e), { x <- 1:5 y <- runif(5) } )) Just wondering why I

I've just been trying to post-process some R-created heatmaps using Inkscape, but I can't get them to display correctly in that software. To reproduce: library(grid) r <- as.raster(matrix(runif(25), 5, 5)) pdf("test.pdf") grid.newpage() grid.raster(r, interpolate = FALSE) dev.off() This figure should be a five by five block of grey squares. This is what I see in the R GUI

>From the Details section of ?capture.output: Messages sent to stderr() (including those from message, warning and stop) are captured by type = "message". Note that this can be "unsafe" and should only be used with care. Capturing messages works as expected: capture.output(message("!!!"), type = "message") ## [1] "!!!" Capturing warnings

If I want to use with inside a loop, it seems that next gets confused. To reproduce: for(lst in list(list(a = 1), list(a = 2), list(a = 3))) { with(lst, if(a == 2) next else print(a)) } I expect 1 and 3 to be printed, but I see [1] 1 Error in eval(expr, envir, enclos) : no loop for break/next, jumping to top level Is this a) by design, or b) a bug, or c) a thing that is rare enough that I

> From: Richard Cotton <richierocks at gmail.com> > > The rep function is very versatile, but that versatility comes at a > cost: it takes a bit of effort to learn (and remember) its syntax. > This is a problem, since rep is one of the first functions many > beginners will come across. Of the three main uses of rep, two have > simpler alternatives. > > rep(x,

I recently tried to submit a package to CRAN using the release function in the devtools package and got the response: > The policies asked you to use the webform: do so in future. I think that the relevant line in the policies are: > When submitting a package to CRAN you should use the submission form at > http://CRAN.R-project.org/submit.html (and not send an email). You will be sent

If you set the "digits17" control option in deparse, you get a lot of unnecessary space in the representation of complex numbers. > deparse(0 + 0i) [1] "0+0i" > deparse(0 + 0i, control = "digits17") [1] "0 + 0i" As far as I can tell, the logic for this comes from this piece of /src/main/deparse.c: if (TYPEOF(vector) == CPLXSXP

Hi, at the R prompt, is it possible to retrieve the last error (as in condition object of class "error")? I'm not asking for geterrmessage(), which only returns the error message (as a character string). I'm basically looking for a .Last.error or .Last.condition, analogously to .Last.value for values, which can be used when it is "too late" (not possible) to go back

I'm having an issue with occasionally slow-running calls to normalizePath. If the path is a non-existent UNC path, then normalizePath sometimes takes 6 or 7 seconds to run, rather than its usual few microseconds. My big problem is that I can't reliably reproduce this across machines. The example below generates one or two slow runs out of 10000 on my Windows machine. I haven't been

Today while running update.packages(ask = FALSE), R stopped to ask me a question: There are binary versions available but the source versions are later: binary source needs_compilation KernSmooth 2.23-13 2.23-14 TRUE mixture 1.2 1.3 TRUE Do you want to install from sources the packages which need compilation? y/n: update.packages calls

Dear group, Here is my df (obtained with a read.csv2()): df <- structure(list(DESCRIPTION = c("COTTON NO.2 Jul/10", "COTTON NO.2 Jul/10", "PALLADIUM Jun/10", "PALLADIUM Jun/10", "SUGAR NO.11 Jul/10", "SUGAR NO.11 Jul/10"), CREATED.DATE = c("13/05/2010", "13/05/2010", "14/05/2010",

Just downloaded the xen-unstable and updated it using mercurial. When i try to do a make install on a Celeron D 64bit processor, i get the following error: xentop.c:291: error: `KEY_DOWN'' undeclared (first use in this function) xentop.c:294: error: `KEY_UP'' undeclared (first use in this function) xentop.c:314: error: `KEY_BACKSPACE'' undeclared (first use in this

On 16/11/2015 4:00 AM, Richard Cotton wrote: > On 22 October 2015 at 22:55, Duncan Murdoch <murdoch.duncan at gmail.com> wrote: >> I'm planning on adding some new WebGL functionality to the rgl package, but >> it will pull in a very large number of dependencies. Since many people won't >> need it, I'd like to make the new parts optional. > >> Can

Hi all, I have the following x1<-paste("A", 1:6, sep = "") x2<- round(rgamma(6,2,1)) x3<-paste("B", 1:6, sep = "") x4<- round(rgamma(6,2,1)) data1 <- data.frame(x1,x2,x3,x4) I would like to get data2 <- c(A1=4, A2=1, A3=0,...) Is there any standard for such a case? Thank you very much in advance, Diego

In some cases (specifically, SUSE grub2 environments) it is possible to fail to update the block entries in device.map. In turn, this causes an invalid path to be returned in perl-Bootloader code, which causes the conversion to fail with the following message: is_file_opts: is_file: is_file_stub: path must start with a / character This patch prevents the problem by adding device.map (for

Hi all, the commands "btrfs filesystem show" and "btrfs device scan" look at the /dev directory (and it subdirectories) for every block devices. This is a slow process because floppy and cdrom are also checked. Moreover, as highlighted by Helmut, if udev is not used, the /dev directory is populated by high number of non-existant devices, which slow the process. My patch