Hi.

On Wed, Sep 29, 2010 at 8:00 PM, Dario Strbenac
<d.strbe...@garvan.org.au> wrote:
> Hello,
>
> I remember reading a while ago that you can pass in additional parameters to 
> CbsModel, and they will get passed onto DNAcopy functions. However, it 
> doesn't seem to be working for me. I don't want any segments less than 5 
> probes wide. However, the 8th segment is only 2 wide.
>
>> model <- CbsModel(extract(normalisedCels, 1), extract(normalisedCels, 2), 
>> min.width = 5)
>> fit(model, force = TRUE)

Your expectation that you should specify the extra parameters in the
setup of the CbsModel object follows the overall style of the aroma
framework.  However, in this particular case we haven't implemented
passing parameters that way.  However, a workaround is to do it via
the fit() call instead.  In your case, you would do:

model <- CbsModel(extract(normalisedCels, 1), extract(normalisedCels, 2));
fit(model, min.width=5, force=TRUE);

Hope this helps

Henrik

> There were 50 or more warnings (use warnings() to see the first 50)
>> foldChangeTable <- getRegions(model)[[1]]
>> foldChangeTable[1:10,]
>   chromosome     start      stop    mean count                                
>                                                                             
> url
> 1           1     51599  14941584  0.1975  7929          
> http://genome.ucsc.edu/cgi-bin/hgTracks?clade=vertebrate&org=Human&db=hg18&position=chr1%3A0-16430583
> 2           1  14944039  16878322 -0.3535  1163   
> http://genome.ucsc.edu/cgi-bin/hgTracks?clade=vertebrate&org=Human&db=hg18&position=chr1%3A14750611-17071750
> 3           1  16878364  17215511 -0.0717   163   
> http://genome.ucsc.edu/cgi-bin/hgTracks?clade=vertebrate&org=Human&db=hg18&position=chr1%3A16844649-17249226
> 4           1  17217671  26830062 -0.3424  6070   
> http://genome.ucsc.edu/cgi-bin/hgTracks?clade=vertebrate&org=Human&db=hg18&position=chr1%3A16256432-27791301
> 5           1  26830481  72541505  0.1856 28889   
> http://genome.ucsc.edu/cgi-bin/hgTracks?clade=vertebrate&org=Human&db=hg18&position=chr1%3A22259379-77112607
> 6           1  72541525  72583737  2.0660    45   
> http://genome.ucsc.edu/cgi-bin/hgTracks?clade=vertebrate&org=Human&db=hg18&position=chr1%3A72537304-72587958
> 7           1  72584492 101046159  0.1900 18772  
> http://genome.ucsc.edu/cgi-bin/hgTracks?clade=vertebrate&org=Human&db=hg18&position=chr1%3A69738325-103892326
> 8           1 101046857 101047369 -2.8866     2 
> http://genome.ucsc.edu/cgi-bin/hgTracks?clade=vertebrate&org=Human&db=hg18&position=chr1%3A101046806-101047420
> 9           1 101047606 150822152  0.1841 15874  
> http://genome.ucsc.edu/cgi-bin/hgTracks?clade=vertebrate&org=Human&db=hg18&position=chr1%3A96070151-155799607
> 10          1 150822331 150852863  2.6550    31 
> http://genome.ucsc.edu/cgi-bin/hgTracks?clade=vertebrate&org=Human&db=hg18&position=chr1%3A150819278-150855916
>
> I don't think the warnings are related to my question, but here they are, 
> anyway :
>
>> warnings()
> Warning messages:
> 1: In log(M, base = 2) : NaNs produced
> 2: In log(A, base = 2) : NaNs produced
> 3: In DNAcopy::CNA(genomdat = data$y, chrom = data$chromosome,  ... :
>  array has repeated maploc positions
>
> 4: In log(M, base = 2) : NaNs produced
> 5: In log(A, base = 2) : NaNs produced
> 6: In DNAcopy::CNA(genomdat = data$y, chrom = data$chromosome,  ... :
>  array has repeated maploc positions
> ...                ...                ...
>
> I'm using aroma.affymetrix 1.7.0 on R 2.12.0 alpha.
>
> --------------------------------------
> Dario Strbenac
> Research Assistant
> Cancer Epigenetics
> Garvan Institute of Medical Research
> Darlinghurst NSW 2010
> Australia
>
> --
> 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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>

-- 
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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