Modeling by Object-Driven Linear Elemental Relations: A User’s Guide for MODLER©

Modelling by Object-Driver Linear Elemental Relations (MODLER) is a computer language for representing linear programming models, completely separate from instances defined by data realizations. It also includes representations of binary variables and logical constraints, which arise naturally in large-scale planning and operational decision support. The basic input to MODLER is a model file and its basic output is a matrix field that is in a standard (MPS) format for most optimizers and for ANALYZE and RANDMOD. MODLER can also generate a syntax file for ANALYZE to enable automatic translation of activities and constraints into English for intelligent analysis support. The book is accompanied by a DOS version of MODLER on 3.5" diskettes and "A Laboratory Manual for Teaching Linear Programming" is available on request.