  Saroj,
                 thank you,
 class vec: my colum lenth is 6 so  what is the code for make it .
 genenames : i had download my data from in raw file and load  .cel file in
R after that i normailze it and make the object for make the matrix data i
use tah command:
>expr<- exprs(obj)
after that what i do for creat the genenames matrix object, how to creat 3
object and where to download the gene names and how to laos it in genenames
matrix object.plz mail me the code or manual for it .

thank u


regards..

avinash

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