optmatch object.NB: THIS CODE IS CURRENTLY VERY MUCH ALPHA AND SOMEWHAT UNTESTED, ESPECIALLY CALLING update ON AN
OPTMATCH OBJECT CREATED WITHOUT AN EXPLICIT DISTANCE ARGUMENT.
# S3 method for optmatch
update(optmatch, ..., evaluate = TRUE)Optmatch object to update.
Additional arguments to the call, or arguments with changed values.
If true evaluate the new call else return the call.
An updated optmatch object.
Note that passing data again is strongly recommended. A warning will be printed if the hash of the data used to generate the
optmatch object differs from the hash of the new data.