AMPL Python API

Contents

• Introduction
  • What is AMPL API?
  • Who can use AMPL API
  • System requirements
  • About this manual
• Getting started
  • Installation
  • amplpy.modules
  • Initial test
  • Development
  • Deployment
• Class structure
  • AMPL class
  • Modelling entities classes
  • Relation between entities and data
• Python quick start
  • Complete listing
  • Needed modules and AMPL environment creation
  • Load a model from file
  • Solve a problem
  • Get an AMPL entity in the programming environment (get objective value)
  • Modify model data (assign values to parameters)
  • Get numeric values from variables
  • Get arbitrary values via ampl expressions
• Python API reference
  • AMPL classes
  • Algebraic entities classes
  • Exceptions
• Python API examples
  • Example 1: First steps
  • Example 2: Get and set AMPL options
  • Example 3: Assign all data to a model and solve it
  • Example 4: Build an efficient frontier
  • Example 5: Simple heuristic

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Introduction