TITLE:      LGM with individually-varying time of observation
	        and a random slope for time-varying
	        covariates for a continuous outcome 

DATA:	    FILE IS LGM_612part.dat;

VARIABLE:	NAMES ARE y1-y4 x a21-a24 a11-a14;
	        TSCORES = a11-a14;

ANALYSIS:	TYPE = RANDOM;

MODEL:	    i s | y1-y4 AT a11-a14;
	        st | y1 ON a21;
	        st | y2 ON a22;
	        st | y3 ON a23;
	        st | y4 ON a24;
	        i s st ON x;
            !a21 on i;
            !a22-a24 on s;
      
output:     sampstat tech1;

PLOT:       TYPE IS PLOT3;
            SERIES = y1-y4 (*);