Entering edit mode
José Luis Lavín
▴
280
@jose-luis-lavin-5529
Last seen 10.3 years ago
Dear list,
I'm inteterested on using the bioconductor package ChIPpeakAnno to
analyze
some ChIP-seq experiments. The Vignette of the package describes a
series
of capabilities that fit perfectly to what I intend to do for my
analysis.
But there's a major prblem with it, when I try to load the BED files I
retrieved from peak calling programs such as MACS or SISSRS, I can't.
I used BED2RangedData to upload my files but I keep getting the same
error,
e.g.
"> BED2RangedData("macs_peaks.BED",header=FALSE)
Error in BED2RangedData("macs_peaks.BED", header = FALSE) :
No valid data.BED passed in, which is a data frame as BED format file
with
at least 3 fields in the order of: chromosome, start and end. Optional
fields are name, score and strand etc. Please refer to
http://genome.ucsc.edu/FAQ/FAQformat#format1 for details."
I revised the UCSC format page and revised my BED files. To my
surprise
each so called BED file has a different format, but (at least to my
understanding) should comply to BED2RangedData fields
requitrements...here
are my BED files first lines.
1) head macs_peaks.BED
chr1 78570032 78571272 MACS_peak_1 64.10
chr1 172993763 172996043 MACS_peak_2 79.98
chr1 173009505 173012053 MACS_peak_3 113.45
chr1 189432746 189433727 MACS_peak_4 55.42
chr10 129172524 129172778 MACS_peak_5 70.83
chr11 16562386 16562670 MACS_peak_6 53.89
chr11 33101311 33101810 MACS_peak_7 53.01
chr11 33654680 33655228 MACS_peak_8 51.42
chr11 95817226 95817470 MACS_peak_9 53.89
chr11 108872843 108873542 MACS_peak_10 69.06
2) head Chip_K27.BED
chr5 42860311 42860361
HSCAN:310:C1B3LACXX:7:1101:1598:1930 255 +
chr7 104626327 104626377
HSCAN:310:C1B3LACXX:7:1101:1180:1956 255 +
chr7 121488942 121488992
HSCAN:310:C1B3LACXX:7:1101:1294:1940 255 +
chr2 98507295 98507345
HSCAN:310:C1B3LACXX:7:1101:1044:1946 255 +
chr18 18078895 18078945
HSCAN:310:C1B3LACXX:7:1101:1908:1990 255 -
chr8 91855040 91855090
HSCAN:310:C1B3LACXX:7:1101:2369:1954 255 +
chr11 40921952 40922002
HSCAN:310:C1B3LACXX:7:1101:1988:1997 255 +
chr17 44823557 44823607
HSCAN:310:C1B3LACXX:7:1101:2980:1948 255 +
chr2 162682448 162682498
HSCAN:310:C1B3LACXX:7:1101:2818:1989 255 +
chr9 3003254 3003304
HSCAN:310:C1B3LACXX:7:1101:1557:1996 255 +
Could anyone help me with this issue, because I really don's
understand
whats going on here.
Thanks in advance
JL
> sessionInfo()
R version 2.15.1 (2012-06-22)
Platform: x86_64-redhat-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] grid stats graphics grDevices utils datasets
methods
[8] base
other attached packages:
[1] ChIPpeakAnno_2.6.0 limma_3.14.3
[3] org.Hs.eg.db_2.8.0 GO.db_2.8.0
[5] RSQLite_0.11.2 DBI_0.2-5
[7] AnnotationDbi_1.20.3
BSgenome.Ecoli.NCBI.20080805_1.3.17
[9] BSgenome_1.26.1 GenomicRanges_1.10.2
[11] Biostrings_2.26.2 IRanges_1.16.2
[13] multtest_2.14.0 Biobase_2.18.0
[15] biomaRt_2.14.0 BiocGenerics_0.4.0
[17] VennDiagram_1.5.1 BiocInstaller_1.8.3
loaded via a namespace (and not attached):
[1] MASS_7.3-22 parallel_2.15.1 RCurl_1.95-1.1 splines_2.15.1
[5] stats4_2.15.1 survival_2.36-14 tools_2.15.1 XML_3.95-0.1
--
--
Dr. José Luis Lavín Trueba
Dpto. de Producción Agraria
Grupo de Genética y Microbiología
Universidad Pública de Navarra
31006 Pamplona
Navarra
SPAIN
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