extract a specific field of the "attributes" column of a data frame created from a GTF/GFF file
getAttributeField(x, field, attrsep = "; ")
vector representing the "attributes" column of GTF/GFF file
name of the field you want to extract from the "attributes" column
separator for the fields in the attributes column. Defaults to '; ', the separator for GTF files outputted by Cufflinks.
vector of nucleotide positions included in the transcript
Wolfgang Huber, in the
davidTiling R package (LGPL license)
gffRead for creating a data frame from a GTF/GFF file,
and http://useast.ensembl.org/info/website/upload/gff.html for
specifics of the GFF/GTF file format.
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