Hello all, I have just begun working with Bioconductor and am having a problem using the read.marrayInfo command to read in sample information as well as gene names for the .gal files. I am having trouble getting it to even work with the sample package data. For instance, when I type in the command: datadir <- system.file("data", package = "marrayInput") swirl.gnames <- read.marrayInfo(file.path(datadir, "fish.gal"), info.id = 4:5, labels = 5, skip = 21) I get the error message: Error in validObject(.Object) : Invalid "marrayInfo" object: Invalid object for slot "maInfo" in class "marrayInfo": got class "NULL", should be or extend class "data.frame" I can't figure out why even the sample file will not read in. Any help would be greatly appreciated. I am running Win XP Christian

Hi Christian, Please download the marrayClasses 1.2.1 http://www.bioconductor.org/repository/devel/package/html/marrayClasse s.html The bugfix is in there. Jean ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Jean Yee Hwa Yang jean@biostat.ucsf.edu Division of Biostatistics, Tel: (415) 476-3368 University of California, Fax: (415) 476-6014 500 Parnassus Avenue, MU 420-W, San Francisco, CA 94143-0560 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ On Mon, 21 Jul 2003, Christian Bowers wrote: > Hello all, > > I have just begun working with Bioconductor and am having a problem using > the read.marrayInfo command to read in sample information as well as gene > names for the .gal files. I am having trouble getting it to even work with > the sample package data. For instance, when I type in the command: > > datadir <- system.file("data", package = "marrayInput") > swirl.gnames <- read.marrayInfo(file.path(datadir, "fish.gal"), info.id = > 4:5, labels = 5, skip = 21) > > I get the error message: > > Error in validObject(.Object) : Invalid "marrayInfo" object: Invalid object > for slot "maInfo" in class "marrayInfo": got class "NULL", should be or > extend class "data.frame" > > I can't figure out why even the sample file will not read in. Any help > would be greatly appreciated. > I am running Win XP > Christian > > _______________________________________________ > Bioconductor mailing list > Bioconductor@stat.math.ethz.ch > https://www.stat.math.ethz.ch/mailman/listinfo/bioconductor >