Hi.

On Mon, Aug 24, 2009 at 12:21 PM, mbaudis<mbau...@gmail.com> wrote:
>
> Dear all,
>
> I have posted a script and associated files to make it easier to:
>
> 1. process various types of Affymetrix genotyping array batches, using
> aroma.affymetrix, but with
>
> 2. (IMHO) improved value & segmentation plotting options (no EBImage,
> PDF output, inclusion of CNV regions, inclusion of >7800 "cancer
> related" genes ...)

thanks. This looks great.  It is also useful to me to see how others
are trying to setup a pipeline.  Eventually I hope we'll end up with a
fairly standard and user-friendly pipeline.

FYI, EBImage is used by aroma.affymetrix for generating spatial images
of CEL files; generating PNGs using image() was simply painfully slow.
 Other than that, standard PNG output is generated for all other
cases.

>
> The comment can be found at
>
> http://groups.google.com/group/progenetix/web/aroma-affymetrix-processing-visualization
>
> The method has been used extensively here (e.g. currently for all GEO
> Affy genotyping files, up tp >700 x 250k), and seems robust. However,
> you have to tune it for your environment.

Thanks for sharing this experience (700 arrays).

>
> I sometimes run into memory leakage problems, but this is probably not
> due to the front-end ...
>
> Pls. feel free to use & modify; however, I would be very glad for
> suggestions how to improve the processing.

FYI, although only an alpha version, the R.menu package - installed
via hbLite("R.menu") - provides the following:

> library("R.menu");
> chipTypes <- c("GenomeWideSNP_6", "Mapping250K_Nsp", "Mapping250K_Sty", 
> "Mapping50K_Hind240", "Mapping50K_Xba240", "Mapping10K_Xba142", 
> "Mapping10K_Xba131");
> chipType <- textMenu(chipTypes, value=TRUE);

1: GenomeWideSNP_6
2: Mapping250K_Nsp
3: Mapping250K_Sty
4: Mapping50K_Hind240
5: Mapping50K_Xba240
6: Mapping10K_Xba142
7: Mapping10K_Xba131

Selection: 9
Enter an item from the menu.
Selection: yadayada
Enter an item from the menu.
Selection: 1
> chipType
[1] "GenomeWideSNP_6"

This also allows you do select data set etc from a menu, e.g.

path <- Arguments$getReadablePath("rawData/");
dataSets <- list.files(path=path, full.names=TRUE);
dataSets <- dataSets[sapply(dataSets, FUN=isDirectory)];
dataSets <- basename(dataSets);
arraySet <- textMenu(dataSets, value=TRUE);

Also, use byNnn() not fromName(), e.g. AffymetrixCelSet$byName() not
AffymetrixCelSet$fromName().

Cheers,

Henrik

>
> Best,
>
> Michael.
>
> Dr. Michael Baudis
> Institute of Molecular Biology
> University of Zurich
> Winterthurerstrasse 190
> CH-8057 Zurich
> Switzerland
>
> email           michael.bau...@molbio.uzh.ch
> web             www.molbio.uzh.ch/baudis
>
>
> >
>

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