identify_variables

(function from pyomo.core.expr.visitor)

pyomo.core.expr.visitor.identify_variables(expr, include_fixed=True, named_expression_cache=None)[source]

A generator that yields a sequence of variables in an expression tree.

Parameters:

  • expr – The root node of an expression tree.

  • include_fixed (bool) – If True, then this generator will yield variables whose value is fixed. Defaults to True.

Yields:

Each variable that is found.