[Bioc-devel] could bsseq::data.frame2GRanges be added to GenomicRanges
For any tabular data structure with "chr[om]" and one or more of starts, ends, widths, and strands, there _is_ an obvious mapping, though! And I personally always have an optional argument to keep the rest as mcols(). It just seems so straightforward.
The generic granges() method also suggests that people often want a way for something that is not itself a GRanges to at least emit one.
granges(foo) is also a lot easier than
with(foo, GRanges(fairly,
Involved(),
Constructor,
...)
It would be nice if everything were a bed, wig, BAM or similar. Then rtracklayer would be all anyone needs. But, sometimes in the course of events, an unenlightened soul will have their library emit a table of coordinates bearing information that would be more useful as a GRanges. Given the frequency with which this occurs, it's nice to have that generic.
Anyways, this is all your fault! If you hadn't built such a marvelously useful data structure, people wouldn't want to use it in ways you never intended. :-)
No good deed goes unpunished,
--t
On Oct 6, 2013, at 1:26 PM, Michael Lawrence <lawrence.michael at gene.com> wrote: I'm still unconvinced that there is an obvious, general path from data.frame -> GRanges. It's usually easy enough to just call GRanges(), often of the pattern with(df, GRanges(...)). Moreover, it's unusual for me to encounter genomic data in data.frames. On Sun, Oct 6, 2013 at 8:37 AM, Kasper Daniel Hansen < kasperdanielhansen at gmail.com> wrote:
Also, it goes without saying that I am happy to provide a patch for GenomicRanges, and check that it passes R CMD check, to minimize the work of the maintainer. Kasper On Sun, Oct 6, 2013 at 9:28 AM, Kasper Daniel Hansen < kasperdanielhansen at gmail.com> wrote:
bsseq::data.frame2GRanges does the obvious step of converting a
data.frame
to GRanges. It has a couple of bells and whistles where strand can be ignored and additional columns (apart from genomic location) may be
ignore
in the output object. I (and now quite a few other people) use this function almost every day. I have seen other implementations in other packages, suggesting this is not just something I (we) use. I suggests adding this function to GenomicRanges. I am happy to support it going forward. Using this function we could also add an as(x, "GRanges") method for x=data.frame, but I still suggest keeping the basic function for the extended functionality it provides. Best, Kasper
[[alternative HTML version deleted]]
_______________________________________________ Bioc-devel at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/bioc-devel
[[alternative HTML version deleted]]
_______________________________________________ Bioc-devel at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/bioc-devel