Re: [R] Difference between normalizeWithinArrays and

From: James MacDonald <>
Date: Wed 14 Jul 2004 - 02:12:08 EST

Since both of the packages you mention are part of Bioconductor, you would do well to re-post in the correct list (



James W. MacDonald
Affymetrix and cDNA Microarray Core
University of Michigan Cancer Center
1500 E. Medical Center Drive
7410 CCGC
Ann Arbor MI 48109

>>> "Saroj Mohapatra" <> 07/13/04 01:51PM >>>
Dear friends

I have recently migrated to R (8.0) for analysis of microarray data. I am doing a loess (print-tip, perhaps scaled) normalization. I find that
there are 2 options to do this: using normalizeWithinArrays (Limma) and I find the objects returned by the two functions are different, however the M and A values seem to be the same. Is one function preferable over the other? Any feedback regarding this would be

Thanks and regards,


Saroj K Mohapatra, MD
Research Associate
Karmanos Cancer Institute
Wayne State University School of Medicine 110 E. Warren, Room 311
Detroit MI 48201
313-833-0715 x2424 mailing list PLEASE do read the posting guide! mailing list PLEASE do read the posting guide! Received on Wed Jul 14 02:19:21 2004

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