handle_opt_set can only be called on handles which have been correctly initialized (e.g., by
handle_init) and not during the call to the solver. It has two purposes: to reset all optional parameters to their default values; or to set a single optional parameter to a user-supplied value.
Optional parameters and their values are, in general, presented as a character string,
optstr, of the form ‘
’; alphabetic characters can be supplied in either upper or lower case. Both
and
may consist of one or more tokens separated by white space. The tokens that comprise
will normally be either an integer, real or character value as defined in the description of the specific optional parameter. In addition all optional parameters can take an
DEFAULT which resets the optional parameter to its default value.
Information relating to available option names and their corresponding valid values is given in the documentation of the particular solver. See also
Section 3.1 in the
E04 Chapter Introduction for more details about the NAG optimization modelling suite.
None.
All errors and warnings have an associated numeric error code field,
errorid, stored either as a member of the thrown exception object (see
errorid), or as a member of
opt.
ifail, depending on how errors
and warnings are being handled (see
Error Handling for more details).
Not applicable.
Please see the description for the underlying computational routine in this section of the
FL Interface documentation.
None.
Examples for the NAG CPP Interface are not currently available.