compare.m

MATLAB编写的用于属性约简的程序,先运行ROUGH.MDF文件,再输入RED,就可得到约简后的规则.

function include=compare(y,x,arrlen)
	yx=0;
	xy=0;
	for i=1:arrlen,
		if y(i)>=x(i)
			yx=yx+1;
		end
		if x(i)>=y(i)
			xy=xy+1;
		end
	end
	if yx==arrlen
		include=1;
	elseif xy==arrlen
		include=-1;
	else
		include=0;
	end