q4.m

高速公路路面质量改进方案 采用matlab编程 达到了稳定点

function abc4=Q4 

Y=data;
len=length(Y);
count=1;

for(i=1:len)
    if(Y(i,1)&Y(i,2)&Y(i,3)&Y(i,4))
        abc4(count,1)=Y(i,1);
        abc4(count,2)=Y(i,2);
        abc4(count,3)=Y(i,3);
        abc4(count,4)=Y(i,4);
        count=count+1;
    end
end

cov(abc4);
cc1234=corrcoef(abc4)
clc