#define nvar 1			! n dependent variables per individual
#define ndef 2			! n covariates per individual 

G1: Singleton data - Regression
Data Ninput_vars=8 NGroups=1	 	
missing=-1			! Missing values

Rectangular file=wednesday.dat		! read raw data
Labels
ntrid zygMZDZ age1 sekse1  AQ1 age2 sekse2 AQ2
	
select age1 sekse1 AQ1 ;
Definition age1 sekse1 ;

Begin matrices; 

! intercept
! aka grand mean, aka intercept, aka observed variable, akak mean
    C Full 1 nvar free

! independent variable
! aka observed covariates for individual
    X Full 1 ndef fix			

! beta
! aka covariate effect
    B Full ndef 1 free

! variance
    V Full nvar nvar free		

End matrices;

! tell Mx to put the independent variables in the X matrix
Specify X age1 sekse1 ;  

! start values
Start 95 C 1 1 
Start 106 V 1 1 
Start .5 B 1 1 
Start 2  B 2 1


Begin Algebra;

! Write out the regression equation for the observed (dependent) variable - Y 	
      Y = X*B + C ;

End Algebra;


     Means Y ;	! means model 
     Covariances V ;		! variance/covariance model
Option multiple 
Option issat
end