y = a + b*x + error

proc import datafile="F:\publish\data analysis using R\data\cars.csv" out=cars dbms=csv replace;
run;
 
proc mixed data=cars;
  model dist = speed / s;
run;

proc mixed data=cars method=ml;
  model dist = speed / s;
run;

proc genmod data=cars;
  model dist = speed;
run;

proc glimmix data=cars;
  model dist = speed / s;
run;

proc nlmixed data=cars;
  parms alpha=10 beta=10 s2e=100;
  model dist ~ normal(alpha+beta*speed, s2e);
run;