data toxr1;
infile 'N:\public_html\structured_data\toxr1.dat';
input group sex animal time day weight;
run;


title1 'RAT GROWTH DATA';
title2 '---------------';



*  VIEWING THE DATA.  ;
*  -----------------  ;

proc print;
var group sex time day weight;
id animal;
title3 'Weights at the nine assessment times';
title4;
run;

proc sort; by animal;

/*---------------------------------------------------------
| You could plot the data for the animals here.           |
---------------------------------------------------------*/
 PROC GPLOT;
 PLOT WEIGHT*DAY;
 BY ANIMAL;
 RUN;
 quit;