[R] How to create probeAnno object?

Dr. Viviana Menzel vivianamenzel at gmx.de
Wed Feb 10 22:25:30 CET 2010


Hello Ambuj,
I found some information about probeAnno in the packages ccTutorial, 
davidTilling and Ringo.

Objects can be created by calls of the form new("probeAnno", map, 
arrayName, genome).
map:
     Object of class "environment" This map consists of four vectors for 
each chromosome/strand, namely, say for chromosome 1:

     1.start
         genomic start coordinates of probe matches on chromosome 1
     1.end
         genomic start coordinates of probe matches on chromosome 1
     1.index
         identifier of probes matching at these coordinates
     1.unique
         vector of the same length as the three before; encoding how 
many matches the corresponding probe has in the given file or 
data.frame. An entry of '0' indicates that the probe matching at this 
position has only this one match.

arrayName:
     Object of class "character", the name or identifier of the 
microarray design, e.g. 2005-06-17\_Ren\_MM5Tiling\_Set1
genome:
     Object of class "character", which genome the reporters have been 
mapped to

pa <- new("probeAnno")
pa["X.start"] <- seq(5000,10000,by=1000)
if (interactive()) show(pa)

I hope this help.

Regards,

Viviana



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