[BioC] Error in getting MA plot with plotPrintTipLoess command for 244K chip data
yee.leon at gmail.com
Thu Dec 18 13:51:29 CET 2008
Prashantha Hebbar Kiradi [MU-MLSC] wrote:
> Dear Friends,
> I have a critical error in getting MA plot for agilent 244K chip data with plotPrintTipLoess command. Following are the steps which I followed to get the layout information from my GAL file.
>> gal <- readGAL("014791_D_20080424.gal")
>  1
>  1
>  912
>  267
>  "PrintLayout"
> When I use following command to get MA plot with PrinTipLoess, It gives blank MA plot along with error information.
>> plotPrintTipLoess(MA, array=1, layout=RG$printer)
> Error in data.frame(y = object$M[, array], x = object$A[, array], gr = factor(gridc(layout)), :
> arguments imply differing number of rows: 205700, 243504
As for my understanding, RG$printer implies that you don't have the
"PrintTip", so you should try plotLoess or likewise.
This error msg indicates the function requires the input be
243504(912*267) lines, but you provided only 205700.
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