similar to: Ops.data.frame fails with second arg a list (PR#1889)

Inside of the anyNA() function, it will use the legacy any(is.na()) code if x is an OBJECT(). If x is a vector of POSIXct, it will be an OBJECT(), but it is also TYPEOF(x) == REALSXP. Therefore, it will skip the faster ITERATE_BY_REGION, which is typically 5x faster in my testing. Is the OBJECT() condition really necessary, or could it be moved after the switch() for the individual TYPEOF(x)

I see some value in Duncan?s proposal to implement this as an extra package instead of a change to base R, if only to see if the idea has legs. I?m minded to do so myself using your suggestion, but is there a particular reason why you recommend using the remotes package instead of devtools? The latter seems to have the same functions I would need, and I believe it is more widely installed that

Full_Name: Barry Rowlingson Version: 1.6.0 OS: RH8 i386 Submission from: (NULL) (148.88.136.205) Strange things happen if I premultiply a difftime() object with a number. Example: > d1 <- difftime(Sys.time(),Sys.time()) > d2 <- 1 * difftime(Sys.time(),Sys.time()) > d3 <- difftime(Sys.time(),Sys.time()) * 1 > d1 Time difference of 0 secs - thats fine > d2 [1] 0

Hi, I would be nice if names() returned the equivalent of ls() for environments. --- a/src/main/attrib.c +++ b/src/main/attrib.c @@ -687,6 +687,8 @@ SEXP attribute_hidden do_names(SEXP call s = CAR(args); if (isVector(s) || isList(s) || isLanguage(s)) return getAttrib(s, R_NamesSymbol); + if (isEnvironment(s)) + return R_lsInternal(s, 0); return R_NilValue; }

On Thu, 26 Jul 2018, G?bor Cs?rdi wrote: > On Thu, Jul 26, 2018 at 12:25 PM Barry Rowlingson > <b.rowlingson at lancaster.ac.uk> wrote: >> >> On Thu, Jul 26, 2018 at 12:22 AM, G?bor Cs?rdi <csardi.gabor at gmail.com> wrote: >>> I am trying to control a background R session, connected via a fifo / >>> named pipe. >> >> Is the fifo

I am currently puzzled by a passage in the R Extensions manual, section 5.10: SEXP lapply(SEXP list, SEXP expr, SEXP rho) { R_len_t i, n = length(list); SEXP ans; if(!isNewList(list)) error("`list' must be a list"); if(!isEnvironment(rho)) error("`rho' should be an environment"); PROTECT(ans = allocVector(VECSXP, n));

On Mon, Mar 8, 2010 at 8:46 PM, Barry Rowlingson <b.rowlingson at lancaster.ac.uk> wrote: > On Mon, Mar 8, 2010 at 6:44 PM, Ma Ismail - NewYork-MEAG-NY > <ima at meag-ny.com> wrote: >> Hi, >> >> A few of the developers on our Quant team are using R for data calculation and to generate a [snip] > ?I've noticed a lot of financial corporates getting into R

Full_Name: Barry Rowlingson Version: 1.2.0 OS: Redhat 7.0/i386 Submission from: (NULL) (148.88.0.11) Compiling R 1.2.0 from source on a RH7.0 machine I get: ../unix/libunix.a(sys-unix.o): In function `R_getProcTime': /root/R-1.2.0/src/unix/sys-unix.c:153: undefined reference to `__sysconf' /root/R-1.2.0/src/unix/sys-unix.c:154: undefined reference to `__sysconf' - it installed

After accusing someone of typing 'install.packages("weather")' instead of 'install.packages("webmaps")', I discovered that R-forge really is currently returning the wrong source tarball for packages after 'Repitools' in the alphabet. The data returned from available.package in install.packages goes out of sync at 'Repitools': RemoteREngine

Barry, Would you mind providing the necessary patch for this behavior? Thanks, Greg > -----Original Message----- > From: Barry Rowlingson [mailto:B.Rowlingson@lancaster.ac.uk] > Sent: Monday, November 04, 2002 8:04 AM > To: r-devel@stat.math.ethz.ch > Subject: Re: longjmp - was: seemingly random "nesting of > readline input" > warnings > > > Luke

Would you care to share how your package installs its own dependencies? I assume this is done during the call to `main()`? (Last time I checked, R CMD INSTALL would not install a package's dependencies...) On Thu, Jan 31, 2019 at 4:38 PM Barry Rowlingson < b.rowlingson at lancaster.ac.uk> wrote: > > > On Thu, Jan 31, 2019 at 3:14 PM David Lindelof <lindelof at ieee.org>

Full_Name: Barry Rowlingson Version: R-1.2.0 OS: RH7/i386 Submission from: (NULL) (148.88.0.11) demo(is.things) fails with: > is.ALL(NULL) Error in as.POSIXct.default(x) : Don't know how to convert `x' to class "POSIXct" In addition: Warning message: is.nan() applied to non-(list or vector) in: fn(obj) - this seems to be because it is calling: > is.na.POSIXlt(NULL)

Yes, the performance overhead of fixing this at R level would be too large and it would complicate the code significantly. The result of binary operations involving NA and NaN is hardware dependent (the propagation of NaN payload) - on some hardware, it actually works the way we would like - NA is returned - but on some hardware you get NaN or sometimes NA and sometimes NaN. Also there are C

Dear Barry, In general, I believe users are already accustomed with the classical arrows "->" and "<-" which are used as such in quoted expressions. But I agree that "-.>" is a very neat trick, thanks a lot. A small dot, what a difference. All the best, Dmitri On Mon, Mar 4, 2024 at 11:40?AM Barry Rowlingson < b.rowlingson at lancaster.ac.uk> wrote:

Full_Name: Barry Rowlingson Version: 1.5.0 OS: x86 linux Submission from: (NULL) (130.95.16.114) Elements of a dataframe may be a matrix or another dataframe. In this case the summary() method can do bad things: > x <- data.frame(1:10) > x$z <- data.frame(x=1:10,y=1:10) > summary(x) X1.10 z Min. : 1.00 NULL:Min. : 1.00 1st Qu.: 3.25

>>>>> Harvey Smith >>>>> on Wed, 1 May 2019 03:20:55 -0400 writes: > Inside of the anyNA() function, it will use the legacy any(is.na()) code if > x is an OBJECT(). If x is a vector of POSIXct, it will be an OBJECT(), but > it is also TYPEOF(x) == REALSXP. Therefore, it will skip the faster > ITERATE_BY_REGION, which is typically 5x

Full_Name: Barry Rowlingson Version: 1.7.0 OS: RH8/Mandrake 9.1 Submission from: (NULL) (194.80.32.8) internet.R in the tests directory hangs during 'make check' if an http proxy is needed for http access from the machine. This happens in the httpget function defined therein. It tries to make a direct socket connection to port 80 of a remote machine, and if local network policy does not

Thanks for the help on the translucent dots. What would be the best method for creating a map of the facility? I looked into map* in the libraries and didn't find anything on creating the maps, just using them. Thanks again... Shawn Way, PE Engineering Manager sway at tanox.com -----Original Message----- From: Prof Brian Ripley [mailto:ripley at stats.ox.ac.uk] Sent: Thursday, October

Maybe someone has already suggested this, but if your functions accepted strings you could use sub or gsub to replace the -> with a symbol that parsed at the same precedence as <-, say <<-. Then parse it and deal with it. When it is time to display the parsed and perhaps manipulated formulae to the user, deparse it and do the reverse replacement. > encode <-

On Mon, Feb 29, 2016 at 6:17 PM, John Chambers <jmc at r-project.org> wrote: > The Wikipedia statement may be a bit misleading. > > S was never open source. Source versions would only have been available with a nondisclosure agreement, and relatively few copies would have been distributed in source. There was a small but valuable "beta test" network, mainly university