matlab——灰色關聯分析

x1=[1.14 1.49 1.69 2.12 2.43 4.32 5.92 6.07 7.85;3.30 3.47 3.61 3.80 4.00 4.19 4.42 4.61 4.80;6.00 6.00 6.00 7.50 7.50 7.50 9.00 9.00 9.00;1.20 1.20 1.80 1.80 1.80 2.40 2.70 3.60 4.00;4.87 5.89 6.76 7.97 8.84 10.05 11.31 12.25 11.64]%原始數據5行9列
x=x1;
for i=1:5
    for j=1:9
  x(i,j)=x(i,j)/x1(1,j)
 end
end
x1=x
for i=1:5
    for j=1:9
  x(i,j)=abs(x(i,j)-x1(i,1))
 end
end
max=x(1,1)
min=x(1,1)
for i=1:5
    for j=1:9
 if x(i,j)>=max
     max=x(i,j)
 end
  end
end
for i=1:5
    for j=1:9
 if x(i,j)<=min
     min=x(i,j)
  end
  end
end
k=0.5 %分辨係數取值
l=(min+k*max)./(x+k*max)%求關聯繫數矩陣