[BioC] factdesign package

Denise Scholtens dscholte at hsph.harvard.edu
Tue May 4 18:05:46 CEST 2004

Hi Claire,

The 500 probes are a random sample of the 12625 probes available on the
U95av2 array.  No biological interpretability here - this was done purely
for size reasons so that the vignette would run a little faster.


On Tue, 4 May 2004, Claire Wilson wrote:

> Dear all,
> I have been working through the factdesign vignette and was wondering
> why only 500 genes are used. The data given are derived from Affymetrix
> HGU95av2 chips that have been normalised using RMA. I believe the U95av2
> chips measure the abundance of ~12,000 transcripts. Is the filtering of
> genes from 12,000 to 500 done purely for size reasons and if so how were
> these 500 selected? If not what criteria were used to select the 500
> genes?
> Many thanks
> Claire
> --------------------------------------------------------
> This email is confidential and intended solely for the use o...{{dropped}}
> _______________________________________________
> Bioconductor mailing list
> Bioconductor at stat.math.ethz.ch
> https://www.stat.math.ethz.ch/mailman/listinfo/bioconductor

Denise Scholtens
Department of Biostatistics
Harvard School of Public Health
Office: M1B11, DFCI
Phone: 617.632.4494
dscholte at hsph.harvard.edu

More information about the Bioconductor mailing list