[R] how to merge distance data based on location

[Matthew Keller]

Hi all,

I have two data frames, two columns each, 1000s of rows. Each row
represents a segment of the genome where a deletion has occurred.
First column is start position of the deletion in genomic distance,
second is end position.

So, e.g., first 3 rows of data frame A is:
1003 1023
5932 6120
12348 12689

first 3 rows of data frame B is:
852 5305
1010 1015
8500 9500
10000 13000

I want to merge based on distance, such that each row will be
deletions that overlap. So I'd like:
1003 1023    852 5305   1010 1015
5932 6120
8500 9500
12348 12689    10000 13000

Does anyone have ideas about how to accomplish this?
Thank you,

Matthew Keller

-- 
Matthew C Keller
Asst. Professor of Psychology
University of Colorado at Boulder
www.matthewckeller.com