[BioC] BED2RangedData

[R [guest]]

Deal All,
I have a bed-file which is the putput from SISSRS peak calling that looks like this: 

chr1	24619151	24619191	55
chr1	24619551	24619591	66
chr1	24619951	24619991	71
chr1	24620831	24620871	56
chr1	24622451	24622751	54
chr1	48938391	48938431	43
chr1	58670811	58670851	33
chr1	84971591	84971631	22
chr1	84976011	84976051	20
chr1	84979971	84980051	22



when I try to convert it using BED2RangedData in R I get the following error: 

Error in `rownames<-`(`*tmp*`, value = c("55", "66", "71", "56", "54",  : 
  duplicate rownames not allowed

 -- output of sessionInfo(): 

> sessionInfo()
R version 2.15.3 (2013-03-01)
Platform: x86_64-pc-linux-gnu (64-bit)

locale:
 [1] LC_CTYPE=nb_NO.UTF-8       LC_NUMERIC=C               LC_TIME=nb_NO.UTF-8       
 [4] LC_COLLATE=nb_NO.UTF-8     LC_MONETARY=nb_NO.UTF-8    LC_MESSAGES=nb_NO.UTF-8   
 [7] LC_PAPER=C                 LC_NAME=C                  LC_ADDRESS=C              
[10] LC_TELEPHONE=C             LC_MEASUREMENT=nb_NO.UTF-8 LC_IDENTIFICATION=C       

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

other attached packages:
 [1] ChIPpeakAnno_2.6.1                  limma_3.14.1                       
 [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_1.10.7               
[11] Biostrings_2.26.3                   IRanges_1.16.4                     
[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_2.15.3  RCurl_1.95-4.1   splines_2.15.3   stats4_2.15.3   
[6] survival_2.36-14 tools_2.15.3     XML_3.96-0.2  

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