/TITLE
Bootstrapped analysis of simulated data, OLS
! Comments can be inserted following exclamation points
  and ending in semicolons;
/SPECIFICATIONS
 DATA='MEDSIM1.ESS';
 VARIABLES=  3; CASES=   80;
 METHODS=ls; !Least squares converges more regularly than ML;
 MATRIX=RAW;
/EQUATIONS
V2 =  + .331*V1 + E2;  
V3 =  + -.03*V1 + .275*V2 + E3;
!The above equations specify starting values from the full sample.
 These speed up the processing time; 
/VARIANCES
V1 = .68*;
E2 = 1.1*;
E3 = .93*;
/COVARIANCES
/PRINT
 effect=yes;
 digit=3;
 linesize =80;
/SIMULATION
  SEED = 6062000;
  REPLICATIONS=1000;
  BOOTSTRAP = 80;
! The 4 lines above control the bootstrap.  Seed is an arbitrary
  number that starts the random number generation.  Replications
  are how many bootstrap samples you want, while Bootstrap= specifies
  the size of each bootstrap sample;
/OUTPUT ;
  PARM; SE;
  DATA='M3BOOT.TXT';
/END