Please
Could anybody tell me what is the problem? It does not happens in windows.

I was revisiting the read.images code and it seems that the problem is
related to some wt.fun identification or somethig. because it tryes to
analize the code of the wt.fun function. Am I right?

 library(limma)
+ path=paste(base.path,"UCCOR/Investigacion/Osvaldo/Chile/Directa",sep="")
+
targetfiles=readTargets("DirectaSinNormal_TargetFile.csv",path=path,sep=",")
+ signal.cols=list(R="F647 Median",Rb="B647 Median",G="F555 Median",Gb="B555
Median")
+ RG=read.maimages(paste(path,"/",targetfiles$FileName,sep=""),
+ source="genepix.median",quote = "\"'",columns=signal.cols,wt.fun =
wtflags(0),
+ other.columns="Flags")

Error in gsub("\\.", "\\\\.", x) :
  input string 1 is invalid in this locale
Calls: read.maimages ... switch -> read.columns -> grep -> protectMetachar
-> gsub


> sessionInfo()
R version 2.10.0 (2009-10-26)
x86_64-unknown-linux-gnu

locale:
 [1] LC_CTYPE=en_US.UTF-8          LC_NUMERIC=C
LC_TIME=en_US.UTF-8           LC_COLLATE=en_US.UTF-8
 [5] LC_MONETARY=en_US.UTF-8       LC_MESSAGES=en_US.UTF-8
LC_PAPER=en_US.UTF-8          LC_NAME=en_US.UTF-8
 [9] LC_ADDRESS=en_US.UTF-8        LC_TELEPHONE=en_US.UTF-8
LC_MEASUREMENT=en_US.UTF-8    LC_IDENTIFICATION=en_US.UTF-8

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base

other attached packages:
[1] limma_3.2.1     SystemUtils_1.0 rkward_0.5.1

loaded via a namespace (and not attached):
[1] tools_2.10.0

-- 
Elmer A. Fernández (Bioing. PhD)
Investigador Asistente CONICET - Research Assistant CONICET
Porf. Inteligencia Artificial -UCC - Prof. Artificial Intelligence @ UCC
tel: +54-(0)351-4938000 int 145
Fax: +54-(0)351-4938081
web page : http://www.uccor.edu.ar/modelo.php?param=3.8.5.15
http://sites.google.com/site/biologicaldatamininggroup/Home/
mail address: Camino Alta Gracia Km 7.1/2- Córdoba-5000-Argentina

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