Hi Sarah. There is currently nothing readily available for batch effect adjustment in aroma.affymetrix (that I know of). But, there are ways of doing it that wouldn't be too difficult to do as a once-off. What did you have in mind?
... however, even with a batch adjustment, it may still be difficult to get reliable results on such an experiment. Cheers, Mark On 15/12/2008, at 10:57 PM, srgrey...@gmail.com wrote: > > Hi All, > I have six Rat Exons arrays that were done about two years apart. The > arrays done at each timepoint normalize very well to each other, but I > cannot get decent normalization between batches. Is there a way to > adjust for batch effects in aroma.affy that can be incorporated into > an exon array analysis? > > Thank you, > Sarah > > > ------------------------------ Mark Robinson Epigenetics Laboratory, Garvan Bioinformatics Division, WEHI e: m.robin...@garvan.org.au e: mrobin...@wehi.edu.au p: +61 (0)3 9345 2628 f: +61 (0)3 9347 0852 ------------------------------ --~--~---------~--~----~------------~-------~--~----~ When reporting problems on aroma.affymetrix, make sure 1) to run the latest version of the package, 2) to report the output of sessionInfo() and traceback(), and 3) to post a complete code example. You received this message because you are subscribed to the Google Groups "aroma.affymetrix" group. To post to this group, send email to aroma-affymetrix@googlegroups.com To unsubscribe from this group, send email to aroma-affymetrix-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/aroma-affymetrix?hl=en -~----------~----~----~----~------~----~------~--~---
