similar to: Problem with dyn.load'ed code

Dear all, I am currently working on the calculation of eigenvalues (and -vectors) of large matrices. Since these are mostly sparse matrices and I remember some specific functionalities in MATLAB for sparse matrices, I started a research how to optimize the calculation of eigenvalues of a sparse matrix. The function eigen itself works with the LAPACK library which has no special handling for

Dear all, I want to compute the eigenvalues of a complex matrix for some statistics. Comparing it to its matlab/octave sibling, I don't get the same eigenvalues in R computing it from the exact same matrix. In R, I used eigen() and arpack() that give different eigenvalues. In matlab/octave I used eig() and eigs() that give out the same eigenvalues but different to the R ones. For real

I've just pulled my R installations up to 1.4.0, and am having trouble with some of my dyn.load'd C code: R frequently segfaults after .C calls into the (newly rebuilt) libraries. It hasn't happened with any previous versions of R I've used. I do seem to be able to make things behave by removing calls to free(). Changing everything to Calloc() and Free(), didn't help,

Hi, I am a Newbie for R. I just installed R-base on my notebook with openSuSE 11. However, I always got compilation errors in installing add-on packages. For example, when installing "igraph" I got the following error: ___________________________________________________________________ * Installing *source* package 'igraph' ... checking for gcc... gcc checking for C compiler

Dear all, I have used the Scompile package (by Mathhew Calder) on previous releases of R (on Windows), and it has worked well. However, R.1.3.1 crashes when dyn.load'ing C-functions created by Scompile. >From the last R-newsletter it seems that there has been some changes to how external routines are being included in version 1.3.1. I won't claim to understand the details, but I was

dear wizards: FYI: gentoo is a linux meta distribution, which compiles all packages. Once running, gentoo is stable on most applications. (it has some problems with system tools, such as grub.) the compiler is gcc 3.3.3. I do not expect anyone to track down for me why R fails on the gentoo amd64+gcc3.3.3 system, but I thought that it would be good to put it on the record to save

dear wizards: FYI: gentoo is a linux meta distribution, which compiles all packages. Once running, gentoo is stable on most applications. (it has some problems with system tools, such as grub.) the compiler is gcc 3.3.3. I do not expect anyone to track down for me why R fails on the gentoo amd64+gcc3.3.3 system, but I thought that it would be good to put it on the record to save

igraph is a package for graphs and networks. It has a C core and uses a simple and fast graph representation allowing millions of vertices and edges. NEW FEATURES: - We use the ARPACK library for graph related eigenvalue problems, like Page Rank calculation, Kleinberg's hub and authority scores, eigenvector centrality, etc. There is also a generic interface if someone wants to use

igraph is a package for graphs and networks. It has a C core and uses a simple and fast graph representation allowing millions of vertices and edges. NEW FEATURES: - We use the ARPACK library for graph related eigenvalue problems, like Page Rank calculation, Kleinberg's hub and authority scores, eigenvector centrality, etc. There is also a generic interface if someone wants to use

Hello: I've been trying for days now to get igraph working on a debian sarge install. There does not appear to be any pre-built packages, and when I try and install within R, it blows up on the final linking, claiming its unable to find libgfortran (which IS installed, and IS working for all other users of the compiler). I started up R and ran: install.packages("igraph"). It

Hi! I am trying to compile R-1.8.1 on an alphaserver running Tru64 Unix. I use the compilers cc,cxx and f77. After the compilation I try: make check and get the following message: Make: Cannot open /share/make/vars.mk. Stop. Does anyone have any suggestions on why? Regards Arne Gjuvsland

Hello all, I was wondering if there is a function in R that only computes the eigenvector corresponding to the largest/smallest eigenvalue of an arbitrary real matrix. Thanks Minh -- Living on Earth may be expensive, but it includes an annual free trip around the Sun.

Hi, I was wondering if anyone knew of an implementation of a function similar to "eigs" in Matlab (full description here: http://www.mathworks.com/access/helpdesk/help/techdoc/ref/eigs.html). This function differs from the standard "eigen" in that it computes a *few* eigenvectors for cases in which your matrix is very large and/or you don't need all the eigenvectors.

Last time I tried, a few years back, Wine was not yet up to handling Garmin's proprietary topo map software. It would install, and sometimes even work, so long as I didn't try to connect a GPS to it. (The ones I have are all also Garmins -- old ones wanting a serial port.) I made a huge effort, for most of a year, with a lot of help from high-powered Alpha Plus Technoids on several

Hi. I've recently updated to Suse 9.3, and my OED2 CDROM software no longer works properly under Wine - the dialog and general system text of the application still displays properly, but the application data, the results lists and definition text, doesn't. Essentially, the problem seems to be that Wine seems to think that this kind of text has to be displayed as small caps. The

I've just installed dovecot on my FC5 box. I tweaked the dovecot-openssl.cnf and attempted to recreate the cert but get the errors below. I see older postings about this problem on FC2. help? - e # ./mkcert.sh /etc/ssl/certs directory doesn't exist /etc/ssl/private directory doesn't exist error on line -1 of dovecot-openssl.cnf 2810:error:02001002:system library:fopen:No such

Full_Name: Mark Bravington Version: 2.2.1 OS: Windows XP Submission from: (NULL) (203.132.243.69) # r-bugs at r-project.org There is a bug to do with 'load', environment access via '[[', and 'attr<-' or 'attributes<-'. Modifying the attributes of a *copy* of an object can modify the original too, under certain conditions: - the copy needs to be

hello everyone, I've looked through Google and this list's archives but have come up empty. here's may question: I have an NT laptop where I log in as administrator, I have a linux box with an account of my one (erick). Everytime I try to access the filesystem on the Linux box, NT sends credentials for administrator which of course, is wrong. when the challenge fail I'm prompted

hei everyone, I have a weird problem: if I do a # cd /somedir; stat somesubdir |grep Modify where /somedir is some directory on an SMB-mounted filesystem I get one datetime... but I I do: # cd /somedir; stat * |grep Modify for the same directory I get a Modify time which consistently differs by 1 second. As I'm writing a perl module to detect differences in a filesystem and rely on the

This is the error I get when trying to install R-1.3.1 on my Solaris 2.6 box. Any assistance would be greatly appreciated. g77 -g -O2 -c xxxpr.f -o xxxpr.o gcc -o R.bin CConverters.o Rdynload.o RNG.o apply.o arithmetic.o array.o at trib.o bind.o builtin.o character.o coerce.o colors.o complex.o connections.o context.o cov.o cum.o dcf.o datetime.o debug.o devPS.o devPicTeX.o deparse.o d