[Rd] Question about match.fun()

Dear all, I was recently contacted by a user about an alledged problem/bug in the latest version of lasso2. After some investigation, we found out that it was a user error which boils down to the following: x - matrix(rnorm(200), ncol=2) var - fred apply(x, 2, var) Error in get(x, envir,

Re: [Rd] Efficient Merging of two huge sorted data frames?---Use merge()?

merge() is not optimized for large data frames. To do things on this scale you really want to be using a DBMS not R. See the `R Data Import/Export Manual'. Sorting is not really relevant, especially as merge is not assuming that the match is unique. Hashing could be used, but is not. As R

[Rd] combn(n, k, ...) and all its re-inventions

It seems people are reinventing the wheel here: The goal is to generate all combinations of 1:n of size k. This (typically) results in a matrix of size k * choose(n,k) i.e. needs O(n ^ k) space, hence is only applicable to relatively small k. Then alternatives have been devised to generate the

Re: [Rd] Seg fault when installing package from bad repository

It still segfaults even now that I've fixed the access error. Ah, but if I specify type=source, so it must be a problem with having a mac binary path but no packages in it. Is there anyway to fall back to source automatically? Thanks, Hadley On 5/9/06, hadley wickham [EMAIL PROTECTED] wrote:

[Rd] Rmpi instlation problem (PR#8846)

Ive tryed this: R CMD INSTALL Rmpi_0.5-2.tar.gz But occurred this error: gcc -shared -L/usr/local/lib64 -o Rmpi.so conversion.o internal.o RegQuery.o Rmpi.o -lmpi -llam -lutil -lpthread -L/usr/local/lib64/R/lib -lR /usr/lib64/gcc-lib/x86_64-suse-linux/3.3.3/../../../../x86_64-suse-linux/bin

Re: [Rd] Rmpi instlation problem (PR#8846)

This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --27464147-1443006808-1147172576=:8133 Content-Type: TEXT/PLAIN; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8BIT First, please

Re: [Rd] combn(n, k, ...) and all its re-inventions

Martin Maechler [EMAIL PROTECTED] writes: tweaks, I have now a version of combn() that is faster than all the other implementations {only slightly faster than combinations()}, and I plan to add this to R's standard package 'utils'. Hopefully, the reinventing can be stopped by this, once

Re: [Rd] Seg fault when installing package from bad repository

On Tue, 9 May 2006, hadley wickham wrote: It still segfaults even now that I've fixed the access error. Ah, but if I specify type=source, so it must be a problem with having a mac binary path but no packages in it. It seems to be corruption inside the intl library on your machine: note how

Re: [Rd] Unfelicity :-) with edit()

[Duncan Murdoch] I'll fix it. Thanks, Duncan. While I quite understand that more serious work should be done within real sources files, fixing and editing is still useful for quick, evanescent interactive toying. edit() is a hack, so you should expect problems. You're better off keeping

Re: [Rd] suppressing global cppflags in an individual package

Kasper Daniel Hansen wrote: Hi I can use PKG_CPPFLAGS in a Makevars file to add additional flags to the c++ compiler for a given package. Is it possible to remove flags passed to the packages from R. Eg: say R have been compiled with -O2 and I want the package to be compiled with

Re: [Rd] suppressing global cppflags in an individual package

On May 9, 2006, at 9:49 AM, Hin-Tak Leung wrote: Kasper Daniel Hansen wrote: Hi I can use PKG_CPPFLAGS in a Makevars file to add additional flags to the c++ compiler for a given package. Is it possible to remove flags passed to the packages from R. Eg: say R have been compiled with

[Rd] YA S4 method dispatch question

I recently encountered this and was wondering if someone could explain what happened. Basis of question involves what the difference between the calls makes as the end result is the same: identical(matrix(1:8, nrow = 1), array(1:8, c(1, 8))) TRUE If I run the code below as shown, I get the

Re: [Rd] suppressing global cppflags in an individual package

On May 9, 2006, at 1:11 PM, Kasper Daniel Hansen wrote: It is indeed the case that after updating to GCC 4 the package gets broken using -O2. I agree this needs to be fixed, but the error [...] unfortunately), but reading your comment about CPPFLAGS and CXXFLAGS makes me think I can

[Rd] RFC: log='z' for image, contour, persp?

I've been thinking of adding the possibility of including z among the axes to be logged in image, contour, and persp. In the first two, it would only affect where the breaks were set if they are calculated automatically; it would have a bigger effect in persp. For example, image(x, y, z,

Re: [Rd] YA S4 method dispatch question

You won't like this ...;) return(drop(callGeneric(array(x, c(1, length(x)), val) ))) i.e., 'val' is inside 'array'! I was discouraged from answering sooner by the complexity of your example; simplifying it might