Subset an adp (acoustic Doppler profile) object, in a manner that is function
is somewhat analogous to subset.data.frame. Subsetting can be by
time or distance, but these may not be combined; use a sequence
of calls to subset by both.
Usage
"subset"(x, subset, ...)
Arguments
x
An adp object, i.e. one inheriting from adp-class.
subset
A condition to be applied to the data portion of
x. See Details.