Calculates difference of two intervals sets

Returns difference of two sets of intervals.

Usage

gintervals.diff(intervals1 = NULL, intervals2 = NULL, intervals.set.out = NULL)

Arguments

intervals1, intervals2

set of one-dimensional intervals

intervals.set.out

intervals set name where the function result is optionally outputted

Value

If 'intervals.set.out' is 'NULL' a data frame representing the intervals.

Details

This function returns a genomic space that is covered by 'intervals1' but not covered by 'intervals2'.

If 'intervals.set.out' is not 'NULL' the result is saved as an intervals set. Use this parameter if the result size exceeds the limits of the physical memory.

See also

gintervals, gintervals.intersect, gintervals.union

Examples

gdb.init_examples()

intervs1 <- gscreen("dense_track > 0.15")
intervs2 <- gscreen("dense_track < 0.2")

## 'res3' equals to 'res4'
res3 <- gintervals.diff(intervs1, intervs2)
res4 <- gscreen("dense_track >= 0.2")