Hi Som, It is difficult to understand what is causing the error without more information on which version of R and arrayQuality you are using, and without knowing how you read the genepix data in. Could you please join the complete R code you used to read the data in (ie. how you created your data object) and the results of sessionInfo() to your email? Thanks, Agnes -----Original Message----- From: bioconductor-bounces@stat.math.ethz.ch on behalf of Bandyopadhyay, Somnath (Som) Sent: Thu 3/8/2007 3:54 PM To: bioconductor at stat.math.ethz.ch Subject: [BioC] arrayQuality Hello, I am working on gene-pix two-channel data and trying to do some qc on my chips using the arrayQuality package. The following is the error message I am getting: > maQualityPlots(data) [1] FALSE Error in plot.window(xlim, ylim, log, asp, ...) : need finite 'ylim' values In addition: Warning messages: 1: no non-missing arguments to min; returning Inf 2: no non-missing arguments to max; returning -Inf 3: no non-missing arguments to min; returning Inf 4: no non-missing arguments to max; returning -Inf Any help would be appreciated Thanks, Som. [[alternative HTML version deleted]] _______________________________________________ Bioconductor mailing list Bioconductor at stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/bioconductor Search the archives: http://news.gmane.org/gmane.science.biology.informatics.conductor