Hi I'm having some troubles in the importation of an archive .GFF3, i've
read the Help and the vinhtes so many times, made so many things and still
don't work!

> gffpath = system.file("gff3/chr1_1_247249719.gff3", package="gwascat")
> library(rtracklayer)
> c1 = import(gffpath, asRangedData = FALSE)
Erro em .Call2("solve_user_SEW0", start, end, width, PACKAGE = "IRanges") :
  solving row 975: range cannot be determined from the supplied arguments
(too many NAs)


Here is part of the database...
I cannot found the error!!

The first line is the line 975, where R says that there is "too many NAs":

chr1    UCSC    cytoband    7100000    9200000    .    +    .
Parent=Sequence:Cytoband:1p36.23;Alias=p36.23;Alias=1p36.23;Stain=gpos25
chr1    UCSC    chromosome    5300000    7100000    .    +    .
ID=Sequence:Cytoband:1p36.31;Alias=p36.31;Alias=1p36.31;Stain=gneg
chr1    UCSC    cytoband    5300000    7100000    .    +    .
Parent=Sequence:Cytoband:1p36.31;Alias=p36.31;Alias=1p36.31;Stain=gneg
chr1    UCSC    chromosome    2300000    5300000    .    +    .
ID=Sequence:Cytoband:1p36.32;Alias=p36.32;Alias=1p36.32;Stain=gpos25
chr1    UCSC    cytoband    2300000    5300000    .    +    .
Parent=Sequence:Cytoband:1p36.32;Alias=p36.32;Alias=1p36.32;Stain=gpos25
chr1    UCSC    chromosome    .    2300000    .    +    .
ID=Sequence:Cytoband:1p36.33;Alias=p36.33;Alias=1p36.33;Stain=gneg
chr1    UCSC    cytoband    .    2300000    .    +    .
Parent=Sequence:Cytoband:1p36.33;Alias=p36.33;Alias=1p36.33;Stain=gneg


Thanks in advance for help!

-- 
Atenciosamente,
Deisy Morselli Gysi

Bacharel em Biotecnologia (PUC-PR)
Graduanda em Estatística (UFPR)
Aluna de Iniciação Científica (PIBIC/UFPR)

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