Hi I am using Ubuntu 8.04 64 bit, R as below, Matlab 7.6.0. I would like to transfer mat files back and forward between R and Matlab. Whilst I have used Matlab for years its been a long time since I have used R (hence question may be a bit simple)
Running code A <- c(1:10) dim(A) <- c(2,5) library(R.matlab) writeMat('A.mat', A=A) Does not appear to generate any mat file either in local directory or in /tmp/R* I tried both current version of R.matlab and older version because of bug https://stat.ethz.ch/pipermail/r-help/2008-September/173432.html A <- matrix(1:27, ncol=3) B <- as.matrix(1:10) fn <- paste(tempfile(), ".mat", sep="") writeMat(fn, A=A, B=B) data <- readMat(fn) print(data) unlink(fn) onWrite <- function(x) writeBin(x$length, con=x$con, size=4, endian="big"); writeMat(fn, A=A, B=B, onWrite=onWrite) Does generate a file in /tmp/Rtmpjhfjxw -rw-r--r-- 1 dst dst 396 2008-09-27 12:46 file643c9869.mat When I try to read it into Matlab I get ??? Error using ==> load Unable to read MAT-file /tmp/Rtmpjhfjxw/file643c9869.mat File may be corrupt. (This is same error message as above link and occurs with old and current version of R.matlab) Any advice would be very helpful Regards Douglas > sessionInfo() R version 2.6.2 (2008-02-08) x86_64-pc-linux-gnu locale: LC_CTYPE=en_GB.UTF-8;LC_NUMERIC=C;LC_TIME=en_GB.UTF-8;LC_COLLATE=en_GB.UTF-8;LC_MONETARY=en_GB.UTF-8;LC_MESSAGES=en_GB.UTF-8;LC_PAPER=en_GB.UTF-8;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=en_GB.UTF-8;LC_IDENTIFICATION=C attached base packages: [1] stats graphics grDevices utils datasets methods base other attached packages: [1] R.matlab_1.2.1 R.oo_1.4.6 R.methodsS3_1.0.3 loaded via a namespace (and not attached): [1] rcompgen_0.1-17 > The University of Aberdeen is a charity registered in Scotland, No SC013683. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.