getNextLeftFocal: Expand the neighborhood to the left
Description
This function tries to expand the neighborhood to the left, when the next SNV
from getNextFromFocal is incompatible with each SNV in
the neighborhood of the focal SNV, and this incompatible SNV is to the
right of the neighborhood.
Usage
getNextLeftFocal(current, absDist)
Arguments
current
Current SNVs in the neighborhood of focal SNV.
absDist
Absolute distance of SNVs from the focal SNV in base pairs.
Value
An index of a SNV to the left of the neighborhood to be returned to findSNVs.