[BioC] calculating median expression between to identical gene names in data frame
srini_iyyer_bio at yahoo.com
Fri Mar 14 17:26:56 CET 2008
I have a data frame with 180 rows and 25 coloumns
(data from a affy experiment). I have 10 normals and
15 cancer lines.
of 180 I have some duplicate gene names (arising from
two different probesets for a single gene).
I want to calculate the median expression value for
these two identical genes.
here I have 6 samples and 2 genes.
gids N1 N2 N3 T1 T2 T3 T4
G1 10 12 11 40 46 39 46
G1 8 10 8 35 46 32 53
could any one please help me How can I calculate the
median expression for these two identical genes.
After I do this, I want to do clustering.
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