[BioC] PM-intensity and probeset, matrix

Mohammad Esad-Djou shahrgol at web.de
Fri Jun 10 21:13:53 CEST 2005

Hello all,

I would like to extract PM value of 3 probeset and the result with matplot represent.
I wrote this small program:

ps<- probeset(data.raw, genenames = c("203508_at","204563_at", "204513_s_at"))

pms1<- pm(ps[[1]])
pms2<- pm(ps[[2]])
pms3<- pm(ps[[3]])

con <- matrix(c(0, 0.125,0.25,0.5,1,2,4,8,16,32,64,128,256,512), 11, 42, byrow = TRUE)

matplot(con, pms1, log = "xy", main = "PM", ylim = c(30, 20000))
points(con, pms2)
points(con, pms3)

I get the expected result but I have 2 questions:

1. Can I all value of PM extract at one time? If yes, how?
pms.all <-  pm(ps????)

2. If answer of the first question is negative, can I 3 matrix combine? 
Because I use in my main program several probeset, I do not want to use POINTS.
I would like only matplot use. 

Mohammad Esad-Djou

Mit der Gruppen-SMS von WEB.DE FreeMail können Sie eine SMS an alle

More information about the Bioconductor mailing list