[BioC] variable "ygs98cdfSYMBOL" was not found

John Zhang jzhang at jimmy.harvard.edu
Thu Mar 24 15:47:15 CET 2005

There is no annotation for SYMBOL in any of the annotation packages for yeast 
because there were no source data available for SYMBOL when the packages were 

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>    I'm new to bioconductor and am trying to use the simpleaffy package.
>My example is simple:
> >library(simpleaffy)
> >library(ygs98cdf)
> > x <-read.affy()
> > x.rma<-call.exprs(x,"rma")
>Background correcting
>Calculating Expression
> > pw<-pairwise.comparison(x.rma,"treatment",c("n","a"))
> > pw.filtered<-pairwise.filter(pw)
> > summary<-results.summary(pw.filtered,'ygs98cdf')
>Error in get(x, envir, mode, inherits) : variable "ygs98cdfSYMBOL" was 
>not found
>Any ideas?
>Apologies if this is the wrong list for this mail.
>Bioconductor mailing list
>Bioconductor at stat.math.ethz.ch

Jianhua Zhang
Department of Medical Oncology
Dana-Farber Cancer Institute
44 Binney Street
Boston, MA 02115-6084

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