Choose either the value from an option list or the current set value for an option.
PKNCA.choose.option(name, value = NULL, options = list())
The value of the option first from the options
list and if it
is not there then from the current settings.
The option name requested.
A value to check for the option (NULL
to choose not to
check the value).
The non-default options to choose from.
Other PKNCA calculation and summary settings:
PKNCA.options()
,
PKNCA.set.summary()