hi. I have downloaded several cDNA studies in .xls format. These are the raw data files. now how do I get expression values for these after normalization. which package to use and what are the steps involved. please help me. thanks Srini

Hmm, the question is too vague. In theory you could save anything as an "xls" file including raw microarray data as well as the preprocessed datasets. 1) Can you please copy and paste few of your lines from you "xls" file so we can determine what information is available. Any other information such as type of array (e.g. Agilent) would be also helpful. 2) Where did you download the dataset from and was there any further information from the source to indicate what could the contents be ? Regards, Adai On Fri, 2005-03-11 at 09:12 -0800, Srinivas Iyyer wrote: > hi. I have downloaded several cDNA studies in .xls > format. These are the raw data files. now how do I > get expression values for these after normalization. > which package to use and what are the steps involved. > please help me. > thanks > Srini > > _______________________________________________ > Bioconductor mailing list > Bioconductor@stat.math.ethz.ch > https://stat.ethz.ch/mailman/listinfo/bioconductor >