[BioC] Minimal region of overlap between two GRanges objects

[Daniel Brewer]

Dear mailing list,

I have two GRanges objects each containing segments of copy number change for a tumour.  I would like to find regions where there is copy number change in both the tumours.  I though findOverlaps was giving me what I wanted but soon found that findOverlaps(A,B) != findOverlaps(B,A).  I am sure there must be a reasonable way to do this but I cannot find it.

Thanks

Dan

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Daniel Brewer, Ph.D.
Institute of Cancer Research
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The Institute of Cancer Research: Royal Cancer Hospital, a charitable Company Limited by Guarantee, Registered in England under Company No. 534147 with its Registered Office at 123 Old Brompton Road, London SW7 3RP.

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