similar to: Xeon CPU and ATLAS

I just ran into this strange behavior. y <- rnorm(1000) x <- seq(0, length=length(y)) plot(x, y, type='l', lty=1) - instantaneous plot(x, y, type='l', lty=2) - 18s plotting lines + 15s plotting axes = 33s plot(x, y, type='l', lty=3) - 76s ,, + 75s ,, = 151s plot(x, y, type='l', lty=4) -

A couple of days ago a few messages indicated that something changed in the basic plot routine that made plot(*, type='l') slow for large data sets. Some people even reported crashes for very large data sets. As far as I remember, this was not reported as a formal bug. I am still not sure if this is a bug, so I report my findings here. First of all, I think I see a slowdown of the plot

Hi, I am having the following problem and I am not sure if this is bug or I am missing something obvious. I have a bunch of R functions that automatically process large data sets. The processing produces several numerical summaries and several graphs which are subsequently put in reports. I usually do my processing in R BATCH mode on a Win2000 machine. All the graphical functions in my package

Hi all, I've compiled R-1.4.0 on my NT box with link against ATLAS. It has passed all the Rcmd CHECK that I could run. If there's sufficient interest, I can make the SetupR.exe available (on CRAN?). Just drop me a note if you're interested. Note the following: o I can only connect thru 56K dial-up until Jan. 2, 2002, so unless there's overwhelming demand, I won't attempt

hi everyone: I have a Dell Server that has a Xeon processor, and I would like to use the best ATLAS posted in the R website. I find that R has ATLAS for core2duo and P4. I am not sure which one of these two is best suited for Xeon processor, or is that neither of these two is good and I should stick with the default one that was installed originally? Your advice is very much appreciated! Best,

Is there any way to process the "vignette" documantation files? I have been looking at the bioconductor packages and most of them have *.Rnw files in doc directories. They look like regular TeX but have sections showing R code that seem to choke TeX. Thanks, Andy __________________________________ Andy Jaworski Engineering Systems Technology Center 3M Center, 518-1-01 St. Paul, MN

Hi, I have a problem of estimating a mixture of two normal distributions. I need to find the starting points automatically, since this is a part of a larger piece of image processing code. I found the mix2normal1 function in VGAM package that mentions a method of finding starting values for mu1 and mu2 but refers the reader to a book by Everitt and Hand. Unfortunately, I do not have an easy

I think that there is a bug in the as.POSIXct function on Windows. Here is what I get on Win2000, Pentium III machine in R 1.8.1. > dd1 <- ISOdatetime(2003, 10, 26, 0, 59, 59) > dd2 <- ISOdatetime(2003, 10, 26, 1, 0, 0) > dd2 - dd1 Time difference of 1.000278 hours Now, the 26th of October was the day that change to the standard time occurred, so I suspect that this has

I just installed R-1.4.0 on my Win2k machine from SetupR.exe. Everything seems to be fine with the base and recommended packages. However, when I install the lattice and grid packages they do not seem to work. Everything I try results in something like this: Instruction 0x00543f06 refernced memory 0x00000000. The memory cannot be "read". and I am getting kicked out of R. Has

Hello all, I have a very simple set of data and I would like to analyze them with probit analysis. The data are: X Event Trial 100 8 8 75 8 8 50 6 8 25 4 8 10 2 8 0 0 8 I want to estimate the value of X that will give a 95% hit rate (Event/Trial) and the corresponding 95% CI. Anyone can offer some help? Thanks!! -

Hi, I have the following question about creating data frames. I want to create a data frame with 2 components: a vector and a matrix. Let me use a simple example: y <- rnorm(10) x <- matrix(rnorm(150), nrow=10) Now if I do dd <- data.frame(x=x, y=y) I get a data frame with 16 colums, but if, according to the documentation, I do dd <- data.frame(x=I(x), y=y) then str(dd)

Hi, I am not sure if this is a bug, so I am posting it here. I also searched the FAQ file for the readline string and did not find anything about the behavior below. I just successfully rsync'ed, compiled and tested R-1.4.0 on my RH 7.2 Linux machine. I encountered one problem though. When running ./configure I noticed that I was getting errors from the readline library. Although

I am not sure if this is already known. I checked BUGS and found some references to similar behavior when R_HOME is set? Here is what I get: (1) Fresh build of 1.4.1 under Linux/RH-7.2. All tests pass. > R CMD check ctest * checking for working latex ... OK * using log directory `/home/andyj/stat/R-1.4.1/library/ctest.Rcheck' Installing *source* package `ctest'

Hi, I am trying to compile R-1.3.1 under RH-7.2 Linux. I used the old gcc compiler (kgcc) and the compilation went fine. I can start R and run some rudimentary tasks with no problem. However, when I did make check I got the following error in base-Ex.Rout > fa <- file.access(dir(".")) Error in file.access(dir(".")) : file.access is not implemented on

Hi, I just installed the odesolve package and ran the check command on it. It failed trying to execute library(gnlm). Sure enough, there is no gnlm library on my system and I could not find it on the CRAN archive either. Am I missing anything obvious or is gnlm some private library that somehow found its way into the example section of odesolve? Thanks in advance, Andy

This is (hopefully) a small request. I routinely build (and test) both R versions from sources on my system (WinXP). I would like to be sure that I have the current version of Rtools. I always go to Robert Murdoch's site "Building R for Windows" and check the latest news. Everything I need is explained there, except I never know if I have the most recent version of Rtools.exe.

Hi, This seems a very basic problem, but I cannot seem to find the solution to it. I am trying to use Rcmdr on a data frame I created in my current R session. More specifically, I did x <- data.frame(matrix(0, ncol=3, nrow=5)) library(Rcmdr) Now I would like to be able to edit, view and perhaps analyze x, but I cannot seem to figure out how to make it active. Any hint will be welcome.

Dirk suggested I move this thread over here. I am trying to get a multithreaded (multi CPU) version of ATLAS working with R, and have been unable, thus far, to get it working. Has anyone gotten an multithreaded version of ATLAS working on Debian (64 bit)? I've tried this: apt-get source atlas -t unstable cd atlas-3.8.3 DEFAULTS=n fakeroot debian/rules custom but it is APPEARING to only

Rhelpers: I recently installed the 64-bit version of R on my Debian system, and afterwards was asked if it was compiled using ATLAS. Is there a way to test to see if R is using ATLAS? --j

I wonder how one in R can fit a 3rd degree polynomial to some data? Say the data is: y <- c(15.51, 12.44, 31.5, 21.5, 17.89, 27.09, 15.02, 13.43, 18.18, 11.32) x <- seq(3.75, 6, 0.25) And resulting degrees of polynomial are: 5.8007 -91.6339 472.1726 -774.2584 THanks in advance! -- Jonas Malmros Stockholm University Stockholm, Sweden