[BioC] bg.correct.gcrma?
Zhijin Wu
zwu at jhsph.edu
Thu May 5 17:56:33 CEST 2005
Maybe I can include that as an option in the next release.
Currently you can modify the gcrma function, at the last line,
instead of
return(rma(object,background=FALSE,verbose=verbose))
change it to
return(object)
Then you will get the object before probe level data are normalized and
converted into gene level expression data.
best,
Jean
On Thu, 5 May 2005, Ann Hess wrote:
> Is it possible to use the command bg.correct.gcrma in BioConductor 1.5
> with R 2.1? I would like to examine the background corrected probe values
> using gcrma. If this command doesn't work, is there something else that
> will allow me to perform just the gcrma backgound correction? I found
> this command by searching the Bioconductor Mail archives (some correspondence
> about bg.correct.gcrma appeared in 2003). Even after loading affy
> and gcrma, I can't find any information about the command bg.correct.gcrma...
>
> > ?bg.correct.gcrma
> No documentation for 'bg.correct.gcrma' in specified packages and
> libraries:
> you could try 'help.search("bg.correct.gcrma")'
> > help.search("bg.correct.gcrma")
> No help files found with alias or concept or title matching
> 'bg.correct.gcrma' using
> regular expression matching.
>
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