[BioC] R 2.15.1 ReadAffy error

DaveW [guest] guest at bioconductor.org
Thu Jun 28 23:16:07 CEST 2012


I'm attempting to read Affymetrix CEL files and failing miserably. Any thoughts.

Error in read.celfile.header(as.character(filenames[[1]])) : 
  Is /home/dw/HDgenotypes/CEL files/Titan_0020_772G_Hannotte_772_001_D06.CEL really a CEL file? tried reading as text, gzipped text, binary, gzipped binary, command console and gzipped command console formats

Here is the output of the first few lines of one of the CEL files in case this helps anyone to spot the issue:

dw at dw-laptop:~/HDgenotypes/CEL files$ head Titan*H09.CEL
;J.!affymetrix-calvin-multi-intensity60000065535-1336523928-0000026962-0000029358-0000011478en-US0affymetrix-algorithm-nameHHT Image Calibration Cell Generation
text/plain
affymetrix-algorithm-version3.2.0.1515
text/plainaffymetrix-array-type�Axiom_GW_Gal_SNP_1
text/plainaffymetrix-library-package�Universal
text/plainaffymetrix-cel-rows�text/x-calvin-integer-32affymetrix-cel-cols�text/x-calvin-integer-32program-company Affymetrix, Inc.
text/plain
          program-nameFAffymetrix Genechip Command Console
text/plain
program-id3.2.0.1515
text/plain)affymetrix-algorithm-param-NumPixelsToUsetext/x-calvin-integer-32+affymetrix-algorithm-param-ImageCalibratioTRUE
text/plain,affymetrix-algorithm-param-FeatureExtraction



 -- output of sessionInfo(): 

> sessionInfo()
R version 2.15.1 (2012-06-22)
Platform: x86_64-pc-linux-gnu (64-bit)

locale:
 [1] LC_CTYPE=en_GB.UTF-8       LC_NUMERIC=C               LC_TIME=en_GB.UTF-8       
 [4] LC_COLLATE=en_GB.UTF-8     LC_MONETARY=en_GB.UTF-8    LC_MESSAGES=en_GB.UTF-8   
 [7] LC_PAPER=C                 LC_NAME=C                  LC_ADDRESS=C              
[10] LC_TELEPHONE=C             LC_MEASUREMENT=en_GB.UTF-8 LC_IDENTIFICATION=C       

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

other attached packages:
[1] affy_1.34.0        Biobase_2.16.0     BiocGenerics_0.2.0

loaded via a namespace (and not attached):
[1] affyio_1.24.0         BiocInstaller_1.4.7   preprocessCore_1.18.0 tools_2.15.1         
[5] zlibbioc_1.2.0       

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