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Hi,
I am having trouble getting fitDespersions to recognize that I have
multicore installed. I get an error from divideWork telling me to load
parallel package but I have multicore and it detects 8 cores. Here is
some of my script to make an exonCountSet object and then estimate
dispersions using four cores.
Thanks,
Lynn
> glueExons <- read.HTSeqCounts(countfiles=file.path(bamPath,paste(row
names(samples),"/htseq_exons.txt",sep="")),design=samples,flattenedfil
e=annotationFile)
>
> sampleNames(glueExons) <- rownames(samples)
>
> expdata <- new("MIAME",name="GlueGenomics")
> experimentData(glueExons) <- expdata
>
> library(DESeq)
> genetable <- geneCountTable(glueExons)
> glue_genes <- newCountDataSet(genetable,conditions=samples)
> experimentData(glue_genes) <- expdata
>
> glueExons <- estimateSizeFactors(glueExons)
> sizeFactors(glueExons)
WT_RY_0_12A WT_RY_P3_12A WT_RY_PIC_12A WT_RY_PP_12A
IL10_RZ_0_12A
1.0143924 0.8163463 1.2448730 0.4565408
2.7520441
IL10_RY_P3_12A IL10_RY_PIC_12A IL10_RY_PP_12A
1.1597040 0.8003611 0.9501160
>
> library(multicore)
> multicore:::detectCores()
[1] 8
> glueExons <- estimateDispersions(glueExons,nCores=4)
Estimating Cox-Reid exon dispersion estimates using 4 cores. (Progress
report: one dot per 100 genes)
Error in divideWork(cds, funtoapply = toapply, fattr =
"dispBeforeSharing", :
Please load first parallel package or set parameter nCores to 1...
-- output of sessionInfo():
R version 2.15.0 (2012-03-30)
Platform: x86_64-unknown-linux-gnu (64-bit)
locale:
[1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C
[3] LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8
[5] LC_MONETARY=en_US.UTF-8 LC_MESSAGES=en_US.UTF-8
[7] LC_PAPER=C LC_NAME=C
[9] LC_ADDRESS=C LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] DESeq_1.9.10 lattice_0.20-6 locfit_1.5-8
DEXSeq_1.3.14
[5] Biobase_2.17.6 BiocGenerics_0.3.0 multicore_0.1-7
loaded via a namespace (and not attached):
[1] annotate_1.35.3 AnnotationDbi_1.19.28 biomaRt_2.13.2
[4] DBI_0.2-5 genefilter_1.39.0 geneplotter_1.35.0
[7] grid_2.15.0 hwriter_1.3 IRanges_1.15.24
[10] plyr_1.7.1 RColorBrewer_1.0-5 RCurl_1.91-1
[13] RSQLite_0.11.1 splines_2.15.0 statmod_1.4.14
[16] stats4_2.15.0 stringr_0.6.1 survival_2.36-14
[19] XML_3.9-4 xtable_1.7-0
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