Entering edit mode
Andreia Fonseca
▴
810
@andreia-fonseca-3796
Last seen 7.9 years ago
Dear all,
I am newby in analysing chip-seq data and I am getting an error in
coverting
my readaligned object to a GenomeData object
the commands that I am using are:
library(ShortRead)
library(PICS)
library(ChIPpeakAnno)
library(snowfall)
exDir<-("/RAID/Paula_chip_seq_data/")
dataIP_JKA<-readAligned(dirPath=exDir, type="Bowtie",
pattern="110402_SN365_B_s_2_seq_GQG-1")
dataIP_JKA <- as(dataIP_JKA, "GenomeData")
Error in as.list.default(from) :
no method for coercing this S4 class to a vector
In addition: Warning message:
Storing reads only by their start positions is deprecated. Please use
a
range representation like GRanges.
> dataCont_JKA
class: AlignedRead
length: 6443227 reads; width: 50 cycles
chromosome: chr20 chr17 ... chr8 chr21
position: 41162388 77764636 ... 59583233 34102674
strand: - - ... - +
alignQuality: NumericQuality
alignData varLabels: similar mismatch
I am getting also an error when trying to convert the map file into a
RangeData object
map<-read.table("/RAID/Paula_chip_seq_data/hg19.fa-50.bed", header =
TRUE,colClasses = c("factor", "integer", "integer", "NULL"))
> map <- as(map, "RangedData")
thanks for the help.
Andreia
sessionInfo()
R version 2.13.1 (2011-07-08)
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=C LC_MESSAGES=en_US.UTF-8
[7] LC_PAPER=en_US.UTF-8 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] snowfall_1.84 snow_0.3-5
[3] ChIPpeakAnno_1.8.0 limma_3.8.2
[5] org.Hs.eg.db_2.5.0 GO.db_2.4.1
[7] RSQLite_0.9-1 DBI_0.2-5
[9] AnnotationDbi_1.14.1
BSgenome.Ecoli.NCBI.20080805_1.3.17
[11] multtest_2.8.0 Biobase_2.12.2
[13] biomaRt_2.8.1 PICS_1.6.0
[15] BSgenome_1.20.0 ShortRead_1.10.4
[17] Rsamtools_1.4.2 lattice_0.19-30
[19] Biostrings_2.20.1 GenomicRanges_1.4.6
[21] IRanges_1.10.4
loaded via a namespace (and not attached):
[1] grid_2.13.1 hwriter_1.2 MASS_7.3-13 RCurl_1.4-2
[5] splines_2.13.1 survival_2.36-9 XML_3.1-0
--
----------------------------------------------------------------------
-----------------------
Andreia J. Amaral, PhD
BioFIG - Center for Biodiversity, Functional and Integrative Genomics
Instituto de Medicina Molecular
University of Lisbon
Tel: +352 217500000 (ext. office: 28253)
email:andreiaamaral@fm.ul.pt ; andreiaamaral@fc.ul.pt
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