.100.45P50.330.250.270.200.301.36∑5.01对向量W=(W1、W2、W3、W4、W5)t归一化处理1iiniiWWW???(i=1,2,……n)Wt=(0.35,0.14,0.14,0.09,0.27)W=(W1、W2、W3、W4、W5)T=(0.35,0.14,0.14,0.09,0.27)T(BW)=133511/31131/21/31131/21/311/311/312231计算判断矩阵最大特征跟λmaxmax1( )niiiBWnW????=1.19/5*0.35+0.8/5*0.14+0.8/5*0.14+0.48/5*0.09+1.45/5*0.27=5.11C.I.=(λmax-N)/(N-1)=(5.11-5)/(5-1)=0.03C.R.=0.03/1.12=0.020.350.140.140.090.27*=1.190.800.800.481.453、求出方案层对目标层的最大特征向量(同2),求得:(W11W21W31)=(0.54,0.16,0.30)(W12W22W23)=(0.30,0.10,0.60)(W13W23W33)=(0.63,0.26,0.11)(W14W24W34)=(0.22,0.67,0.11)(W15W25W35)=(0.30,0.60,0.10)4、求得三家公司的总得分:甲的得分=Wi*Wi1=0.35*0.54+0.14*0.3+0.14*0.63+0.09*0.22+0.27*0.3=0.42乙的得分=Wi*Wi2=0.35*0.16+0.14*0.1+0.14*0.26+0.09*0.67+0.27*0.6=0.33丙的得分=Wi*Wi3=0.35*0.30+0.14*0.6+0.14*0.11+0.09*0.11+0.27*0.1=0.24所以应该选择甲(联想)公司进行电脑订购。
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