Hi, I am attempting to use maQualityPlots() on an RG list in arrayQuality, and get the following error: "Error in if is.int(totalPlate)) { : argument is of length zero" Anyone have any idea what is going on? -Rick

Hi Rick, This error message happens when the layout of your array is not set up properly. Did you set up the printer layout information in your RGList object before calling maQualityPlots? You can do it by typing the following: test <- read.maimages("MyFile.gpr", source="genepix") test$printer <- getLayout(test$genes) If your object is set up properly, can you email me the R commands you used and the version number of the limma, convert and marray packages you are using, so that I can reproduce the error? Best, Agnes -----Original Message----- From: bioconductor-bounces@stat.math.ethz.ch [mailto:bioconductor-bounces at stat.math.ethz.ch] On Behalf Of Richard Strong Sent: Thursday, August 18, 2005 11:48 AM To: Bioconductor at stat.math.ethz.ch Subject: [BioC] arrayQuality Issue. Hi, I am attempting to use maQualityPlots() on an RG list in arrayQuality, and get the following error: "Error in if is.int(totalPlate)) { : argument is of length zero" Anyone have any idea what is going on? -Rick _______________________________________________ Bioconductor mailing list Bioconductor at stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/bioconductor