options ls=72 ps=55;
data a;
/* Missover handles missing values properly; we skip the first line */
/* since it contains variable names                                 */
infile 'z:\stat706\diet.txt' missover firstobs=2;
/* Most of the variables are not used for this one-way analysis     */
input cow trt block covar dmi weeks;
proc plot;
plot dmi*trt;
proc glm;
class trt;
model dmi=trt;
means trt/tukey bon;
output out=outa r=resid;
proc plot;
plot resid*trt;
run;