Hello everyone,
first of all, I'd like to wish Chanukah Sameach and Merry Christmas!

I wrote a few day ago because I was haveing problems in reading my
targets.txt file with the Limma package. This problem was solved (thanks
Jim). Now, I'm having problems with the read.maimages command. I used the
ScanArray Express software to generate my files. I have a .csv and a .gpr
file.

My Targets.txt file is:

  SlideNumber Name                                FileName  Cy3  Cy5
Date
1          83   N1 CLB_Cy3_CL14_Cy5_13860883_18Dez2008.gpr  CLB CL14
2008/18/12
2          85   N2 CL14_Cy3_CLB_Cy5_13860885_18Dez2008.gpr CL14  CLB
2008/18/12

The commands that I tryied were:

RG <- read.maimages(targets$FileName, source="genepix")
Error in `[.data.frame`(obj, , columns[[a]]) : undefined columns selected

RG <- read.maimages(targets$FileName, source="genepix", sep="\t")
Erro em `[.data.frame`(obj, , columns[[a]]) : undefined columns selected

Any suggestions?

Thanks very much!

Priscila

-- 
Priscila Grynberg, B.Sc., M.Sc.
Doutoranda em Bioinformática (Bioinformatics D.Sc student)
Laboratório de Genética Bioquímica
Universidade Federal de Minas Gerais
Tel: +55 31 3409-2628
CV: http://lattes.cnpq.br/8808643075395963

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