/*
** Comments on program title, purposes, 
** and the usage of the program
*/

use gpe2;  @ using GPE package (version 2) @
@ this must be the first executable statement @

/*
** Writing output to file or sending it to printer: 
** specify file name for output
*/

/*
** Loading data: 
** read data series from data files.
*/

/*
** Generating or transforming data series:
** create and generate variables with
** data scaling or transformation
** (e.g. y and x are generated here and will be used below)
*/

call reset;  @ initialize global variables @

/*
** Set input control variables for model estimation
** (e.g. _names for variable names, see Appendix A)
*/

call estimate(y,x); @ do model estimation @
@ variables y, x are generated earlier @

/* 
** Retrieve output control variables for 
** model evaluation and analysis
*/

/*
** Set more input control variables if needed, 
** for model prediction
** (e.g. _b for estimated parameters)
*/

call forecast(y,x); @ do model prediction @

end; @ important: don’t forget this @