Hi.

On Mon, May 16, 2011 at 9:18 AM, mortiz <mortiz...@gmail.com> wrote:
> hi everyone,
>
> im using the function doCRMAv2 but i need to do it setting
> combineAlleles=FALSE to use the allele specific information for some
> functions of mine. After applying a correction to the data i want to
> do CBS, but i cant do it because (im guessing) the alleles have to be
> summarized, so i dont know how to do this. could anyone help me,
> please? here is some of my code so you can understand what im doing:
>
>
> dataSet <- "kotliarov"
> chipType <- "Mapping50K_Xba240";
> dsList <- doCRMAv2(dataSet, chipType=chipType, plm="RmaCnPlm",
> combineAlleles = FALSE, verbose=-10);

An alternative and equivalent wrapper for your convenience/readability is:

dsList <- doASCRMAv2(dataSet, chipType=chipType, plm="RmaCnPlm", verbose=-10);

> print(dsList);
>
> # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> - -
> # CalMaTe - Post-calibration of ASCNs estimates
> # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> - -
> asn <- CalMaTeCalibration(dsList);
> print(asn);
>
> # For speed issues, we will here only process loci on Chromosome 17.
> dsNList <- process(asn, verbose=verbose);
> print(dsNList);
>
>
> and now i want to do CBS over the new "dsNList" data, but i dont know
> how to do it, because if i do cbsModel(dsNList) it gives an error.

The 'dsNList' object is of the same kind as the 'dsList', i.e. a list
containing two data sets, one holding the total CNs and one holding
the corresponding BAFs.

For CBS segmentation, you want to use the total CNs only, e.g.

seg <- CbsModel(dsNList$total);


Finally, you should update to aroma.affymetrix v2.1.0.  I also highly
recommend that you update to R v2.13.0.

Cheers,

Henrik



>
>>sessionInfor();
> R version 2.12.2 (2011-02-25)
> Platform: i386-pc-mingw32/i386 (32-bit)
>
> locale:
> [1] LC_COLLATE=Spanish_Spain.1252  LC_CTYPE=Spanish_Spain.1252
> LC_MONETARY=Spanish_Spain.1252
> [4] LC_NUMERIC=C                   LC_TIME=Spanish_Spain.1252
>
> attached base packages:
> [1] stats     graphics  grDevices utils     datasets  methods
> base
>
> other attached packages:
>  [1] preprocessCore_1.12.0  DNAcopy_1.24.0
> ACNE_0.4.2             MASS_7.3-11
>  [5] aroma.affymetrix_2.0.0 aroma.apd_0.1.8
> affxparser_1.22.1      R.huge_0.2.2
>  [9] aroma.core_2.0.0       aroma.light_1.18.4
> matrixStats_0.2.2      R.rsp_0.4.5
> [13] R.cache_0.4.0          R.filesets_0.9.5
> digest_0.4.2           R.utils_1.6.5
> [17] R.oo_1.7.5             R.methodsS3_1.2.1
>
> loaded via a namespace (and not attached):
> [1] tools_2.12.2
>
> --
> When reporting problems on aroma.affymetrix, make sure 1) to run the latest 
> version of the package, 2) to report the output of sessionInfo() and 
> traceback(), and 3) to post a complete code example.
>
>
> You received this message because you are subscribed to the Google Groups 
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>

-- 
When reporting problems on aroma.affymetrix, make sure 1) to run the latest 
version of the package, 2) to report the output of sessionInfo() and 
traceback(), and 3) to post a complete code example.


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