%include catdata(arrests);

*-- main effects model;
proc logistic data=arrests;
	class colour year sex citizen employed;
	model released = colour year age sex employed citizen checks;
	run;

*-- all two-way model;
proc logistic data=arrests;
	class colour year sex citizen employed;
	model released = colour | year | age | sex | employed | citizen | checks@2;
	run;