reverse               package:IRanges               R Documentation

Reverse an IRanges object

Description:

     This operation is not intended to be used directly.

Usage:

       reverse(x, ...)

Arguments:

       x: An IRanges object. 

     ...: Additional arguments to be passed to or from methods. 

Value:

     An object of the same class and length as the original object.

Examples:

       ## WARNING: The examples here are not relevant anymore and will be
       ## updated soon.
       x <- IRanges(start=c(-2L, 6L, 9L, -4L, 1L, 0L, -6L, 10L),
                    width=c( 5L, 0L, 6L,  1L, 4L, 3L,  2L,  3L))
       reverse(x, start=-6, end=20)

       ## When omitted, 'start' and 'end' are considered to be 'min(start(x))'
       ## and 'max(end(x))', respectively:
       reverse(x)

       reverse(shift(x, 2), start=-6, end=20)
       reverse(restrict(x, 1, 10), start=-6, end=20)
       reverse(reduce(x), start=-6, end=20)
       reverse(gaps(x, start=-6, end=20), start=-6, end=20)

       mask1 <- Mask(mask.width=29, start=c(11, 25, 28), width=c(5, 2, 2))
       mask2 <- Mask(mask.width=29, start=c(3, 10, 27), width=c(5, 8, 1))
       mask3 <- Mask(mask.width=29, start=c(7, 12), width=c(2, 4))
       mymasks <- append(append(mask1, mask2), mask3)
       reverse(mymasks)

