equation |

Declare an equation object.

Syntax

equation eq_name

equation eq_name.method(options) specification

Follow the equation keyword with a name and an optional specification. If you wish to enter the specification, you should follow the new equation name with a period, an estimation method, and the equation specification. Valid estimation methods are given in “Equation Methods”. Refer to each method for a description of the available options.

Examples

equation cobdoug.ls log(y) c log(k) log(l)

declares and estimates an equation object named COBDOUG.

equation ces.ls log(y)=c(1)*log(k^c(2)+l^c(3))

declares an equation object named CES containing a nonlinear least squares specification.

equation demand.tsls q c p x @ x p(-1) gov

creates an equation object named DEMAND and estimates DEMAND using two-stage least squares with instruments X, lagged P, and GOV.

Cross-references