On 5/28/19 07:57, Pariksheet Nanda wrote:
> Hi Hervé,
>
> Indeed, an IRanges with 2^31 elements is 17.1 GB.
> The reason I was interested in IRanges, was GRanges are needed to create
> the BSgenome::BSgenomeViews.
> More broadly, my use case is chopping up a large genome into a fixed
> kmer size
Hi Hervé,
Indeed, an IRanges with 2^31 elements is 17.1 GB.
The reason I was interested in IRanges, was GRanges are needed to create
the BSgenome::BSgenomeViews.
More broadly, my use case is chopping up a large genome into a fixed kmer
size so that repetitive "unmappable" regions can be removed.
h
Hi Pariksheet,
On 5/25/19 12:49, Pariksheet Nanda wrote:
Hello,
R 3.0 added support for long vectors, but it's not yet possible to use them
with IRanges. Without long vector support it's not possible to construct
an IRanges object with more than 2^31 elements:
ir <- IRanges(start = 1:(2^31
Hello,
R 3.0 added support for long vectors, but it's not yet possible to use them
with IRanges. Without long vector support it's not possible to construct
an IRanges object with more than 2^31 elements:
> ir <- IRanges(start = 1:(2^31 - 1), width = 1)
> ir <- IRanges(start = 1:2^31, width = 1)
