Hi Matt, That looks like exactly the thing... but it wouldn't work on Illumina, right? RMA is Affy only? Thanks, Nathan On 14 April 2013 16:43, Matthew McCall <mccallm@gmail.com> wrote: > Nathan, > > Take a look at the frma package and paper: > McCall MN, Bolstad BM, and Irizarry RA* (2010). Frozen Robust > Multi-Array Analysis (fRMA), Biostatistics, 11(2):242-253. > > Best, > Matt > > > > On Sun, Apr 14, 2013 at 10:40 AM, Nathan Skene [guest] > <guest@bioconductor.org> wrote: > > > > Hi, > > > > I have a built a classifier on a set of my own microarray data. > > > > I would like to be able to show that it works on new data, by taking > some from GEO (same tissue, same array platform etc) and classifying that. > > > > However, the probe values in the new datasets are offset compared to > those in my original dataset, presumably because of differences in how they > were normalised. > > > > Is there a way to normalize datasets taken from GEO so that they are > normalized with respect to an existing dataset? > > > > Thanks > > > > > > -- output of sessionInfo(): > > > > - > > > > -- > > Sent via the guest posting facility at bioconductor.org. > > > > _______________________________________________ > > Bioconductor mailing list > > Bioconductor@r-project.org > > https://stat.ethz.ch/mailman/listinfo/bioconductor > > Search the archives: > http://news.gmane.org/gmane.science.biology.informatics.conductor > > > > -- > Matthew N McCall, PhD > 112 Arvine Heights > Rochester, NY 14611 > Cell: 202-222-5880 > [[alternative HTML version deleted]]