model

An NonLinear Program model class for Matlab.

Installation

This is a Matlab package, and therefore the local directory should be prefixed with the "+" symbol, i.e.,

./+model

nlpmodel.m

nlpmodel.m is a general interface for nonlinear programming models that all other model classes inherit from.

Available models

• nlpproblem.m: supports custom user function implementations (for objective, gradient, etc.).
• amplmodel.m: interface for AMPL problems (requires AmplMexInterface).
• cutestproblm.m: interface for CUTEST problems (requires CUTEST).
• slackmodel.m: converts an instance of nlpmodel into slack formulation (equality constraints and bounds only).
• slackmodelnn.m: converts an instance of nlpmodel into nonnegative slack formulation (equality constraints and nonnegative bounds only).

Helper Functions

model_classify.m: write metadata and classification (unconstrained, equality, or bnd constrained) for AMPL or CUTEST problems in a directory.