[BioC] scan date information

Robert Dunne rob.dunne at gmail.com
Mon Sep 21 07:27:50 CEST 2009


Hi List,

I apologise for what may be a very simple question. How can I retrieve
the scan date information from cel files?

I can find the information using some editors, kate under linux shows
"a f f y m e t r i x - s c a n - d a t e   ( 2 0 0 8 - 0 4 - 0 3"
but I can't find it all all using vi or emacs. I suppose this is 
something to do with encoding.
Also "string file.cel | grep "d a t e"" does not work.

I have tried the affxparser library but
readCelHeader("file.cel")
does not pick up the date.

Unfortunately in many experiments the scan date turns out to be the 
major effect.

Bye
Rob



More information about the Bioconductor mailing list