[BioC] Loading data into AgiMicroRna

[Neel Aluru]

Hi Steve,

You can find the answer to this in the mailing list archives. Pedro answered this couple of times. Search the archives for AgiMicroRna and you will have the answer.

Neel

On Oct 11, 2010, at 8:48 AM, Stephen Taylor wrote:

> Hi,
> 
> I am trying to use the AgiMicroRna package on Linux but I get an error when trying to read in the Agilent files of my data.
> 
> >dd.micro=readMicroRnaAFE(targets.micro,verbose=TRUE) 
> Error in readGenericHeader(fullname, columns = columns, sep = sep) :
>  Specified column headings not found in file
> 
> My targets file looks like
> 
> FileName        Treatment       GErep
> US45102931_252182712973_S01_miRNA_107_Sep09_1_1_DNA10203-001.txt        CON     1
> US45102931_252182712973_S01_miRNA_107_Sep09_1_2_DNA10203-002.txt        CON     1
> US45102931_252182712973_S01_miRNA_107_Sep09_1_3_DNA10203-004.txt        C1      2
> US45102931_252182712973_S01_miRNA_107_Sep09_1_4_DNA10203-005.txt        C1      2
> US45102931_252182712973_S01_miRNA_107_Sep09_2_1_DNA10203-006.txt        C1      2
> US45102931_252182712973_S01_miRNA_107_Sep09_2_2_DNA10203-007.txt        C2      3
> US45102931_252182712973_S01_miRNA_107_Sep09_2_3_DNA10203-008.txt        C2      3
> US45102931_252182712973_S01_miRNA_107_Sep09_2_4_DNA10203-009.txt        C2      3
> US45102931_252182712974_S01_miRNA_107_Sep09_1_1_DNA10203-010.txt        C3      4
> US45102931_252182712974_S01_miRNA_107_Sep09_1_2_DNA10203-011.txt        C3      4
> US45102931_252182712974_S01_miRNA_107_Sep09_1_3_DNA10203-012.txt        C3      4
> 
> 
> The column headers for my Agilent files are:
> 
> 
> FEATURES        FeatureNum      Row     Col     SubTypeMask     ControlType     ProbeName       SystematicName PositionX       PositionY gProcessedSignal        gProcessedSigError      gMedianSignal   gBGMedianSignal gBGPixSDev   gIsSaturated    gIsFeatNonUnifOL  gIsBGNonUnifOL  gIsFeatPopnOL   gIsBGPopnOL     IsManualFlag    gBGSubSignal gIsPosAndSignif gIsWellAboveBG  SpotExtentX       gBGMeanSignal   gTotalProbeSignal       gTotalProbeError gTotalGeneSignal        gTotalGeneError gIsGeneDetected
> 
> 
> I notice in the readMicroRnaAFEfunction it is looking for chr_coord, gBGUsedgTotalGeneSignal and gTotalProbeSignalgMeanSignal which do not appear in the input files.
> 
> Any thoughts how I can get the data to load?
> 
> >sessionInfo() 
> R version 2.11.1 (2010-05-31)
> x86_64-unknown-linux-gnu
> 
> locale:
> [1] LC_CTYPE=en_GB.ISO-8859-1       LC_NUMERIC=C
> [3] LC_TIME=en_GB.ISO-8859-1        LC_COLLATE=en_GB.ISO-8859-1
> [5] LC_MONETARY=C                   LC_MESSAGES=en_GB.ISO-8859-1
> [7] LC_PAPER=en_GB.ISO-8859-1       LC_NAME=C
> [9] LC_ADDRESS=C                    LC_TELEPHONE=C
> [11] LC_MEASUREMENT=en_GB.ISO-8859-1 LC_IDENTIFICATION=C
> 
> attached base packages:
> [1] stats     graphics  grDevices utils     datasets  methods   base
> 
> other attached packages:
> [1] AgiMicroRna_1.2.0     preprocessCore_1.10.0 affy_1.26.1
> [4] limma_3.4.3           Biobase_2.8.0
> 
> loaded via a namespace (and not attached):
> [1] affyio_1.16.0
> 
> 
> Kind regards and thanks,
> 
> Steve
> 
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> 

Neel Aluru
Postdoctoral Scholar
Biology Department
Woods Hole Oceanographic Institution
Woods Hole, MA 02543
USA
508-289-3607