get_filled_border: Get border of filled droplets in PNPP experiment
Description
In a PNPP experiment, the rain droplets are the non-empty drops that don't have a
high enough intensity in the positive dimension to be considered as filled
with high quality sample DNA. Only droplets considered as filled are
candidates for the negative and positive clusters.
get_filled_border returns the threshold value in the positive
dimension that is used to determine which drops are filled.
Usage
get_filled_border(plate, well_id)
Value
Thresholds of filled drops in the positive dimension.