[BioC] Is there anyway I can write out data similar to reading them using read.maimages?

[Ruppert Valentino]

Hello,
 
I have big agilent files to deal with and want to know if there is a way to collapse them by reading them and writing out the maimages but with the fields I am after.
 
The script I used to read them are as follows :
 
 
targets <- readTargets("TargetsTest.txt",sep="\t")
 
RG <- read.maimages(targets$FileName, source = "agilent", names=targets$Description, columns= list(R = "rProcessedSignal", G = "gProcessedSignal", Rb = "rBGUsed", Gb = "gBGUsed"), annotation = c("FeatureNum","Row","Col","ProbeName","ControlType","GeneName","Description","SystematicName"))

 
there is no function called write.maimages but is there something similar that would take the RG attributes and write them out so they can be read later using read.maimages?
 
 
thanks