[R] (no subject)

Hi all. I am having problems with inheritance in reference class, here is a small example: Myclass = setRefClass("Myclass", fields = list( fa = "numeric", fb = "numeric", filename = "character"

[R] "block incomplete" error when compiling R

Dear list, I am trying to compile R on a 64-bit Ubuntu 13.04 machine and get the following error: make[2]: Entering directory `/home/kaiyin/opt/R-2.15.0/src/library/Recommended' begin installing recommended package MASS Error in untar2(tarfile, files, list, exdir) : incomplete block on file make[

[R] gpuHclust slower than hclust

Dear list, According to this presentation ( http://www.rinfinance.com/agenda/2010/MarkSeligman_Tutorial.pdf), gpuHclust in the gputools package should be about 20x faster than clust, but after some testing, I find it actually 4x slower. Here is the code: test.data <- function(dim, num, seed=17) {

[R] hclust segfault when using rpuDist

Hi, dear list. I found that hclust causes segfault in R 3.0.1, here is the code after starting R --vanilla: test.data <- function(dim, num, seed=17) { set.seed(seed) matrix(rnorm(dim * num), nrow=num) } m <- test.data(120, 45) library(rpud) # load rpud with rpudplus d <-

Re: [R] parSapply can't find function

i, envir)) 1: source("testing.R") The sequential run was ok. Best regards, Kaiyin ZHONG -- FMB, Erasmus MC k.zh...@erasmusmc.nl kindlych...@gmail.com On Mon, Apr 29, 2013 at 8:26 PM, Duncan Murdoch wrote: > On 29/04/2013 2:16 PM, Kaiyin Zhong (Victor Chung

Re: [R] parSapply can't find function

Oh, indeed, that IS the problem. Thank you!!! Best regards, Kaiyin ZHONG -- FMB, Erasmus MC k.zh...@erasmusmc.nl kindlych...@gmail.com On Mon, Apr 29, 2013 at 8:22 PM, David Winsemius wrote: > > On Apr 29, 2013, at 11:16 AM, Kaiyin Zhong (Victor Chung)

Re: [R] parSapply can't find function

ror in checkForRemoteErrors(val) : 12 nodes produced errors; first error: could not find function "predR" Best regards, Kaiyin ZHONG -- FMB, Erasmus MC k.zh...@erasmusmc.nl kindlych...@gmail.com On Tue, Apr 23, 2013 at 3:44 PM, Uwe Ligges wrote: >

Re: [R] parSapply can't find function

Thanks for the reply. How can i make the functions known to all nodes? Best regards, Kaiyin ZHONG -- FMB, Erasmus MC k.zh...@erasmusmc.nl kindlych...@gmail.com On Tue, Apr 23, 2013 at 2:43 PM, Uwe Ligges wrote: > > > On 18.04.2013 11:11, Kaiyin Zhon

Re: [R] snow: cluster initialization

re = system('nproc') > 16 > > ncore > [1] 0 > # the result is printed, not returned > > > Best wishes, > Jon > > > On 18-Apr-13 10:52, Kaiyin Zhong (Victor Chung) wrote: > >> Dear all, >> >> I found a strange thing with the sn

Re: [R] snow: cluster initialization

tried on a redhat linux (R 2.15.0) server: >> >> > ncore = system('nproc') >> 16 >> > ncore >> [1] 0 >> # the result is printed, not returned >> >> >> Best wishes, >> Jon >> >> On 18-Apr-13 10:52, Kaiyin Zhon

[R] parSapply can't find function

Here is the code, assuming 8 cores in the cpu. library('modeest') library('snow') cl = makeCluster(rep('localhost', 8), 'SOCK') x = vector(length=50) x = sapply(x, function(i) i=sample(c(1,0), 1)) pastK = function(n, x, k) { if (n>k) { return(x[(n-k):(n-1)]) } else {return(NA)} } predR

[R] snow: cluster initialization

Dear all, I found a strange thing with the snow package. This will work: y = matrix(1:4, 2) cl = makeCluster(rep('localhost', 8), type='SOCK') parMM(cl, y, y) This will not: y = matrix(1:4, 2) ncore = system('nproc') parMM(cl, y, y) Error in cut.default(i, breaks) : invalid number of intervals