Error in BSGenome "getSeq" function
1
0
Entering edit mode
pm16057 • 0
@pm16057-12148
Last seen 7.9 years ago

Hi all,

 

I have been experiencing some difficulties with the "getSeq" function from BSgenome. I have used this functions many times in the past and it has always worked fine but now I keep getting the same error. I have a feeling that something has changed in the package but even after going through gitHub and having a look at the source code I can't seem to locate the error.

 

Thank you in advance for your help

DNASequence<-getSeq(BSgenome.Dmelanogaster.UCSC.dm6)
Error in base::which(x, arr.ind, useNames, ...) :
  argument to 'which' is not logical

After traceback()

11: base::which(x, arr.ind, useNames, ...)
10: which(strand == "-")
9: which(strand == "-")
8: loadSubseqsFromStrandedSequence(x@single_sequences, seqname,
       ranges(gr), strand(gr), is_circular)
7: FUN(X[[i]], ...)
6: lapply(seq_len(length(grl)), function(i) {
       gr <- grl[[i]]
       if (length(gr) == 0L)
           return(DNAStringSet())
       seqlevel <- grl_seqlevels[i]
       is_circular <- isCircular(x)[[seqlevel]]
       idx <- match(seqlevel, x@user_seqnames)
       if (is.na(idx))
           stop("invalid sequence name: ", seqlevel)
       seqname <- names(x@user_seqnames)[[idx]]
       if (is.null(snplocs(x, seqname))) {
           subject <- try(get(seqname, envir = x@.seqs_cache, inherits = FALSE),
               silent = TRUE)
           if (is(subject, "try-error")) {
               ans <- loadSubseqsFromStrandedSequence(x@single_sequences,
                   seqname, ranges(gr), strand(gr), is_circular)
               return(ans)
           }
           .linkToCachedObject(subject) <- .newLinkToCachedObject(seqname,
               x@.seqs_cache, x@.link_counts)
       }
       else {
           subject <- x[[seqlevel]]
       }
       masks(subject) <- NULL
       loadSubseqsFromStrandedSequence(subject, seqlevel, ranges(gr),
           strand(gr), is_circular)
   })
5: lapply(seq_len(length(grl)), function(i) {
       gr <- grl[[i]]
       if (length(gr) == 0L)
           return(DNAStringSet())
       seqlevel <- grl_seqlevels[i]
       is_circular <- isCircular(x)[[seqlevel]]
       idx <- match(seqlevel, x@user_seqnames)
       if (is.na(idx))
           stop("invalid sequence name: ", seqlevel)
       seqname <- names(x@user_seqnames)[[idx]]
       if (is.null(snplocs(x, seqname))) {
           subject <- try(get(seqname, envir = x@.seqs_cache, inherits = FALSE),
               silent = TRUE)
           if (is(subject, "try-error")) {
               ans <- loadSubseqsFromStrandedSequence(x@single_sequences,
                   seqname, ranges(gr), strand(gr), is_circular)
               return(ans)
           }
           .linkToCachedObject(subject) <- .newLinkToCachedObject(seqname,
               x@.seqs_cache, x@.link_counts)
       }
       else {
           subject <- x[[seqlevel]]
       }
       masks(subject) <- NULL
       loadSubseqsFromStrandedSequence(subject, seqlevel, ranges(gr),
           strand(gr), is_circular)
   })
4: .extractFromBSgenomeSingleSequences(x, sseq_args$names, sseq_args$start,
       sseq_args$end, sseq_args$width, sseq_args$strand)
3: .local(x, ...)
2: getSeq(BSgenome.Dmelanogaster.UCSC.dm6)
1: getSeq(BSgenome.Dmelanogaster.UCSC.dm6)

And SessionInfo()

sessionInfo()
R version 3.3.2 (2016-10-31)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Ubuntu 14.04.5 LTS

locale:
[1] LC_CTYPE=en_GB.UTF-8       LC_NUMERIC=C             
[3] LC_TIME=en_GB.UTF-8        LC_COLLATE=en_GB.UTF-8   
[5] LC_MONETARY=en_GB.UTF-8    LC_MESSAGES=en_GB.UTF-8  
[7] LC_PAPER=en_GB.UTF-8       LC_NAME=C                
[9] LC_ADDRESS=C               LC_TELEPHONE=C           
[11] LC_MEASUREMENT=en_GB.UTF-8 LC_IDENTIFICATION=C       

attached base packages:
[1] stats4    parallel  stats     graphics  grDevices utils     datasets
[8] methods   base     

other attached packages:
[1] BSgenome.Dmelanogaster.UCSC.dm6_1.4.1 BSgenome_1.42.0                     
[3] rtracklayer_1.34.1                    Biostrings_2.42.1                   
[5] XVector_0.14.0                        GenomicRanges_1.26.2                
[7] GenomeInfoDb_1.10.2                   IRanges_2.8.1                       
[9] S4Vectors_0.12.1                      BiocGenerics_0.20.0                 
[11] BiocInstaller_1.24.0                 

loaded via a namespace (and not attached):
[1] lattice_0.20-34            XML_3.98-1.5             
[3] Rsamtools_1.26.1           GenomicAlignments_1.10.0 
[5] bitops_1.0-6               grid_3.3.2               
[7] zlibbioc_1.20.0            Matrix_1.2-7.1           
[9] BiocParallel_1.8.1         tools_3.3.2              
[11] Biobase_2.34.0             RCurl_1.95-4.8           
[13] SummarizedExperiment_1.4.0

 

R bsgenome getseq • 1.6k views
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1
Entering edit mode
@james-w-macdonald-5106
Last seen 1 day ago
United States

It looks like it might be something local to your installation.

> dnaseq <- getSeq(BSgenome.Dmelanogaster.UCSC.dm6)
> dnaseq
  A DNAStringSet instance of length 1870
          width seq                                         names               
   [1] 23513712 CGACAATGCACGACAGAGGA...GAACAGAGAACAGAGAAGAG chr2L
   [2] 25286936 CTCAAGATACCTTCTACAGA...TACGGAAACAGAATGAATTC chr2R
   [3] 28110227 TAGGGAGAAATATGATCGCG...GTTATTCCATGTTATTCTAT chr3L
   [4] 32079331 ACGGGACCGAGTATAGTACC...TGTTCGCATTCTAGGAATTC chr3R
   [5]  1348131 TTATTATATTATTATATTAT...GTCGATTTGAGATATATGAA chr4
   ...      ... ...
[1866]     1003 ATGCAGAGCTTGCATGCCTG...ATATACATATATACATATAT chrUn_DS485998v1
[1867]     1001 TCAAAAAAAGTTGAAAGCAA...AAAAGCCAGATGCATCGGGA chrUn_DS486002v1
[1868]     1001 AGCACGACGCGACTGCGTTA...TCCGTAACTAACAAAGACCG chrUn_DS486004v1
[1869]     1001 TATACATATATACATATATA...CATATATACGGATATACATA chrUn_DS486005v1
[1870]     1001 CAGGACTCACCAGCGCTCGG...CGACCAACTGAGCGTACCAG chrUn_DS486008v1
> sessionInfo()
R version 3.3.2 (2016-10-31)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 10 x64 (build 14393)

locale:
[1] LC_COLLATE=English_United States.1252
[2] LC_CTYPE=English_United States.1252   
[3] LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C                          
[5] LC_TIME=English_United States.1252    

attached base packages:
[1] stats4    parallel  stats     graphics  grDevices utils     datasets
[8] methods   base     

other attached packages:
 [1] BSgenome.Dmelanogaster.UCSC.dm6_1.4.1 BSgenome_1.42.0                      
 [3] rtracklayer_1.34.1                    Biostrings_2.42.1                    
 [5] XVector_0.14.0                        GenomicRanges_1.26.1                 
 [7] GenomeInfoDb_1.10.1                   IRanges_2.8.1                        
 [9] S4Vectors_0.12.0                      BiocGenerics_0.20.0                  
[11] BiocInstaller_1.24.0                 

loaded via a namespace (and not attached):
 [1] lattice_0.20-34            XML_3.98-1.5              
 [3] Rsamtools_1.26.1           GenomicAlignments_1.10.0  
 [5] bitops_1.0-6               grid_3.3.2                
 [7] zlibbioc_1.20.0            Matrix_1.2-7.1            
 [9] BiocParallel_1.8.1         tools_3.3.2               
[11] Biobase_2.34.0             RCurl_1.95-4.8            
[13] compiler_3.3.2             SummarizedExperiment_1.4.0

You may be able to track this down by re-installing packages, starting with the BSgenome.Dmelanogaster.UCSC.dm6 package. It may be that some of the data in that package got corrupted when you installed it.

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You were right! I had to reinstall R. but it did the trick! Thank you for your help

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