Hello,
thank you very much for your answer. I have now found a way to increase the RAM 
scale factor.
It actually works when I write the RAM scale factor inside the function like 
this :
fit(plm,ram=50,verbose=verbose)
But it does not work If I write the RAM scale factor like this :
setOption(aromaSettings,"memory/ram",50.0)
fit(plm,verbose=verbose)
In that case it always takes 1 as RAM scale factor.
Sincerly yours
Jean-Paul


For information, here is my sessioninfo()
R version 2.11.0 (2010-04-22) 
x86_64-pc-linux-gnu 

locale:
 [1] LC_CTYPE=en_US.utf8          LC_NUMERIC=C                
 [3] LC_TIME=en_US.utf8           LC_COLLATE=en_US.utf8       
 [5] LC_MONETARY=en_US.utf8       LC_MESSAGES=en_US.utf8      
 [7] LC_PAPER=en_US.utf8          LC_NAME=en_US.utf8          
 [9] LC_ADDRESS=en_US.utf8        LC_TELEPHONE=en_US.utf8     
[11] LC_MEASUREMENT=en_US.utf8    LC_IDENTIFICATION=en_US.utf8

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
 [1] aroma.affymetrix_2.1.0 aroma.apd_0.1.8        affxparser_1.20.0     
 [4] R.huge_0.2.2           aroma.core_2.1.0       aroma.light_1.20.0    
 [7] matrixStats_0.2.2      R.rsp_0.5.4            R.cache_0.4.2         
[10] R.filesets_1.0.2       digest_0.5.0           oligo_1.12.2          
[13] oligoClasses_1.10.0    Biobase_2.8.0          R.utils_1.7.5         
[16] R.oo_1.8.0             R.methodsS3_1.2.1      rkward_0.5.3          

loaded via a namespace (and not attached):
 [1] affyio_1.16.0         annotate_1.26.1       AnnotationDbi_1.10.2 
 [4] Biostrings_2.16.9     DBI_0.2-5             genefilter_1.30.0    
 [7] IRanges_1.6.17        preprocessCore_1.10.0 RSQLite_0.9-4        
[10] splines_2.11.0        survival_2.35-8       tools_2.11.0         
[13] xtable_1.5-6         

> 


----- Message d'origine -----
De: Henrik Bengtsson <henrik.bengts...@aroma-project.org>
Date: Dimanche, Août 28, 2011 2:02 am
Objet: Re: [aroma.affymetrix] RAM scale factor
À: aroma-affymetrix@googlegroups.com


> Hi,
> 
> sorry for the delay.  This should work, but before diving into serious
> troubleshooting, could you please report your sessionInfo() so we know
> which versions of packages etc you are using?
> 
> /Henrik
> 
> On Wed, Aug 17, 2011 at 4:38 AM, feugeas jean-paul
> <jean-paul.feug...@sls.aphp.fr> wrote:
> > Hello,
> > I am currently trying to analyze data from 3223 arrays (expression 
> arrays, U133 plus 2) with the following code :
> >
> > verbose<-Arguments$getVerbose(-8,timestamp=TRUE)
> > setOption(aromaSettings,"memory/ram",300.0)
> > cdf<-AffymetrixCdfFile$fromFile("/media/lapino/Rabitt/compilation/ThBigCompil/2_arrays/annotationData/chipTypes/HG-U133_Plus_2/HG-U133_Plus_2.cdf")
> > cs <- AffymetrixCelSet$byName("jp", cdf=cdf)
> > bc <- GcRmaBackgroundCorrection(cs,type="affinities");
> > csB <- process(bc,verbose=verbose);
> > qn <- QuantileNormalization(csB, typesToUpdate="pm");
> > csN <- process(qn);
> > plm <- RmaPlm(csN, flavor="oligo");
> > fit(plm,verbose=verbose)
> >
> > at that point, the number of chunks is always 866 as it was with a 
> RAM scale factor = 1 although RAM scale factor = 300 as it is 
> indicated here :
> >
> >  RmaPlm:
> >  Data set: jp
> >  Chip type: HG-U133_Plus_2
> >  Input tags: GRBC,QN
> >  Output tags: GRBC,QN,RMA,oligo
> >  Parameters: (probeModel: chr "pm"; shift: num 0; flavor: chr 
> "oligo"; treatNAsAs: chr "weights").
> >  Path: plmData/jp,GRBC,QN,RMA,oligo/HG-U133_Plus_2
> >  RAM: 0.01MB
> > 20110817 13:01:43|  Started: 20110817 12:17:56
> > 20110817 13:01:43|  Estimated time left: 37862.0min
> > 20110817 13:01:43|  ETA: 20110912 20:03:41
> > 20110817 13:01:43| Fitting chunk #1 of 866...done
> > 20110817 13:01:43| Fitting chunk #2 of 866...
> > 20110817 13:01:43|  Units:
> >   int [1:62] 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 ...
> > 20110817 13:01:43|  Reading probe intensities from 3223 arrays...
> > 20110817 13:01:43|   Identifying CDF cell indices...
> >
> >
> > Is there a mean to reduce the number of chunks ?
> >
> > Thank you in advance for your help
> >
> > Sincerly yours
> >
> > Jean-Paul
> >
> > --
> > 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 "aroma.affymetrix" group with website http://www.aroma-project.org/.
> > To post to this group, send email to aroma-affymetrix@googlegroups.com
> > To unsubscribe and other options, go to http://www.aroma-project.org/forum/
> >
> 
> -- 
> 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 "aroma.affymetrix" group with website http://www.aroma-project.org/.
> To post to this group, send email to aroma-affymetrix@googlegroups.com
> To unsubscribe and other options, go to http://www.aroma-project.org/forum/

-- 
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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