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Old 05-27-2014, 09:11 PM   #2
Senior Member
Location: Pathum Thani, Thailand

Join Date: Nov 2009
Posts: 190

call that string MyString
NewString <- paste("mygenes_", MyString, sep="")

If that is a column of a data frame called DF
DF$MyString <- paste("mygenes_", DF$MyString, sep="")
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