Equation, Formula, and Model Instructions

These instructions are used to create and modify equations, formulas, and models in RATS.

ASSOCIATE	Assigns coefficients to equations
EQUATION	Defines linear equations
FRML	Defines a (possibly non-linear) formula
GROUP	Builds general simultaneous models
INSTRUMENTS	Sets the list of Instrumental variables
MODIFY	Allows user to modify existing equations
NONLIN	Sets free parameters for formulas
SYSTEM	Used primarily to define VAR and near-VAR models
VADD	Adds a variable to an equation
VREPLACE	Replaces a variable in an equation