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> On Jun 8, 2018, at 11:52 AM, Hadley Wickham <h.wickham at gmail.com> wrote: > > On Fri, Jun 8, 2018 at 11:38 AM, Berry, Charles <ccberry at ucsd.edu> wrote: >> >> >>> On Jun 8, 2018, at 10:37 AM, Herv? Pag?s <hpages at fredhutch.org> wrote: >>> >>> Also the TRUEs cause problems if some dimensions are 0: >>> >>>> matrix(raw(0), nrow=5, ncol=0)[1:3 , TRUE] >&g...

...way is 8 times faster in the following case ...) x <- rep(1,1e6) rbenchmark::benchmark(x[c(FALSE,TRUE,FALSE)],x[seq_along(x) %% 3 == 2]) On the other hand, it takes 0.025 vs 0.003 seconds per iteration ... fortunes::fortune("7ms") On Thu, Jan 4, 2018 at 4:09 PM, Berry, Charles <ccberry at ucsd.edu> wrote: > > >> On Jan 4, 2018, at 11:56 AM, Ben Bolker <bbolker at gmail.com> wrote: >> >> >> Sorry if this has been covered here somewhere in the past, but ... >> >> Does anyone know why logical vectors are *silently* recycled, even...

...(I don't see anything wrong with this word) to find a >solution in R. Replies like "Google it!" are below my level of my >communication and understanding of others. > > >Best wishes > >DK > > >________________________________ >From: Berry, Charles <ccberry at ucsd.edu<mailto:ccberry at ucsd.edu>> >Sent: 11 December 2017 17:04 >To: Damjan Krstajic >Cc: Bert Gunter; r-help at r-project.org<mailto:r-help at r-project.org> >Subject: Re: Gaussian Process Classification R packages > > >> On Dec 11, 2017, at 8:06 AM, D...

I suspect this will have suboptimal performance since the TRUEs will get recycled. (Maybe there is, or could be, ALTREP, support for recycling) Hadley On Fri, Jun 8, 2018 at 10:16 AM, Berry, Charles <ccberry at ucsd.edu> wrote: > > >> On Jun 8, 2018, at 8:45 AM, Hadley Wickham <h.wickham at gmail.com> wrote: >> >> Hi all, >> >> Is there a better to way to subset the ROWs (in the sense of NROW) of >> an vector, matrix, data frame or array than this? &gt...

> On Jun 8, 2018, at 1:49 PM, Hadley Wickham <h.wickham at gmail.com> wrote: > > Hmmm, yes, there must be some special case in the C code to avoid > recycling a length-1 logical vector: Here is a version that (I think) handles Herve's issue of arrays having one or more 0 dimensions. subset_ROW <- function(x,i) { dims <- dim(x) index_list <-

...OW4(arr,seq(1,length=10,by=100),TRUE)) and with system.time(for (i in 1:10000) subset_ROW4(arr,seq(1,length=10,by=100),FALSE)) Changing the dimensions to c(2^5, 2^7, 4, 4 ) and running something similar also shows equal times. Chuck >> On Fri, Jun 8, 2018 at 10:16 AM, Berry, Charles <ccberry at ucsd.edu> wrote: >>> >>> >>>> On Jun 8, 2018, at 8:45 AM, Hadley Wickham <h.wickham at gmail.com> wrote: >>>> >>>> Hi all, >>>> >>>> Is there a better to way to subset the ROWs (in the sense of NROW) of &g...

...d a > >solution in R. Replies like "Google it!" are below my level of my > >communication and understanding of others. > > > > > >Best wishes > > > >DK > > > > > >________________________________ > >From: Berry, Charles <ccberry at ucsd.edu> > >Sent: 11 December 2017 17:04 > >To: Damjan Krstajic > >Cc: Bert Gunter; r-help at r-project.org > >Subject: Re: Gaussian Process Classification R packages > > > > > >> On Dec 11, 2017, at 8:06 AM, Damjan Krstajic <dkrstajic at hotma...

...min mean max #> <chr> <bch:tm> <bch:tm> <bch:tm> #> 1 arr[i, TRUE, TRUE, TRUE] 41.8ms 43.6ms 46.5ms #> 2 arr[i, , , ] 41.7ms 43.1ms 46.3ms On Fri, Jun 8, 2018 at 12:31 PM, Berry, Charles <ccberry at ucsd.edu> wrote: > > >> On Jun 8, 2018, at 11:52 AM, Hadley Wickham <h.wickham at gmail.com> wrote: >> >> On Fri, Jun 8, 2018 at 11:38 AM, Berry, Charles <ccberry at ucsd.edu> wrote: >>> >>> >>>> On Jun 8, 2018, at 10:37 AM, He...

In addition to what Charles wrote, you can also use 'local' if you don't want a function that creates another function. > f <- local({info <- 10; function(x) x + info}) > f(3) [1] 13 best, Mark Op vr 11 dec. 2015 om 03:27 schreef Charles C. Berry <ccberry at ucsd.edu>: > On Thu, 10 Dec 2015, Konrad Rudolph wrote: > > > I?ve got the following scenario: I need to store information about an > > R function, and retrieve it at a later point. In other programming > > languages I?d implement this using a dictionary with the func...

...cade and contact r-help when I am struggling (I don't see anything wrong with this word) to find a solution in R. Replies like "Google it!" are below my level of my communication and understanding of others. Best wishes DK ________________________________ From: Berry, Charles <ccberry at ucsd.edu> Sent: 11 December 2017 17:04 To: Damjan Krstajic Cc: Bert Gunter; r-help at r-project.org Subject: Re: Gaussian Process Classification R packages > On Dec 11, 2017, at 8:06 AM, Damjan Krstajic <dkrstajic at hotmail.com> wrote: > > I have kindly asked for help and I...

Hi everyone, I'm trying to use apply (with a call to zoo's rollapply within) on the columns of a 1.5Kx165K matrix, and I'd like to make use of the other cores on my machine to speed it up. (And hopefully also leave more memory free: I find that after I create a big object like this, I have to save my workspace and then close and reopen R to be able to recover memory tied up by R, but

...(I don't see anything wrong with this word) to find a >solution in R. Replies like "Google it!" are below my level of my >communication and understanding of others. > > >Best wishes > >DK > > >________________________________ >From: Berry, Charles <ccberry at ucsd.edu> >Sent: 11 December 2017 17:04 >To: Damjan Krstajic >Cc: Bert Gunter; r-help at r-project.org >Subject: Re: Gaussian Process Classification R packages > > >> On Dec 11, 2017, at 8:06 AM, Damjan Krstajic <dkrstajic at hotmail.com> >wrote: >> >...

> On Jun 6, 2019, at 2:04 PM, Richard O'Keefe <raoknz at gmail.com> wrote: > > How can expanding tildes anywhere but the beginning of a file name NOT be > considered a bug? > > I think that that IS what libreadline is doing if one allows a whitespace separated list of file names. As reported in R-help, https://www.mail-archive.com/r-help at

...cript too long H. On 06/08/2018 10:29 AM, Hadley Wickham wrote: > I suspect this will have suboptimal performance since the TRUEs will > get recycled. (Maybe there is, or could be, ALTREP, support for > recycling) > Hadley > > On Fri, Jun 8, 2018 at 10:16 AM, Berry, Charles <ccberry at ucsd.edu> wrote: >> >> >>> On Jun 8, 2018, at 8:45 AM, Hadley Wickham <h.wickham at gmail.com> wrote: >>> >>> Hi all, >>> >>> Is there a better to way to subset the ROWs (in the sense of NROW) of >>> an vector, matrix, da...

On Fri, Jun 8, 2018 at 11:38 AM, Berry, Charles <ccberry at ucsd.edu> wrote: > > >> On Jun 8, 2018, at 10:37 AM, Herv? Pag?s <hpages at fredhutch.org> wrote: >> >> Also the TRUEs cause problems if some dimensions are 0: >> >> > matrix(raw(0), nrow=5, ncol=0)[1:3 , TRUE] >> Error in matrix(raw(0), nr...

On Fri, Jun 8, 2018 at 2:09 PM, Berry, Charles <ccberry at ucsd.edu> wrote: > > >> On Jun 8, 2018, at 1:49 PM, Hadley Wickham <h.wickham at gmail.com> wrote: >> >> Hmmm, yes, there must be some special case in the C code to avoid >> recycling a length-1 logical vector: > > > Here is a version that (I think...

I'm not sure why this is happening: tmp <- data.frame( a = letters[1:2], b=c(TRUE, FALSE), stringsAsFactors = FALSE ) idx <- matrix(c(1, 2, 2, 2), 2, byrow = TRUE) tmp[idx] [1] " TRUE" "FALSE" Notice there is a space before the TRUE: " TRUE". This space isn't happening purely because of coercion: c("blah", TRUE, FALSE) [1]

--begin inclusion -- I have a matched-case control dataset that I'm using conditional logistic regression (clogit in survival) to analyze. I'm trying to conduct k-folds cross validation on my top models but all of the packages I can find (CVbinary in DAAG, KVX) won't work with clogit models. Is there any easy way to do this in R? -end inclusion -- The clogit funciton is simply a

> On Nov 23, 2017, at 4:34 AM, Loris Bennett <loris.bennett at fu-berlin.de> wrote: > > Hi, > > TL;DR > ----- > > I define the path > > /cm/shared/apps/R/site-library/3.4.2 > > and add it to libPath. Why does libPath then display it as > > /cm/shared/apps/R/site-library/3.4 > > ? > Because it is a symbolic link.

> On May 27, 2018, at 10:31 PM, francesc badia roca <fbr600 at gmail.com> wrote: > > I have an issue using mle in versions of 32 bits. > > I am writing a package which I want to submit to the CRAN. > When doing the check, there is an example that has an error running in the > 32 bits version. > > The problem comes from the mle function, using it with a lower