[精品]主成分分析作业

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1、采集数据如下表:主要农产品人均占有量单位：公斤年份粮食X1棉花X2油料X3猪牛羊肉X4水产品X5牛奶X619803272.87.812.34.61.219853613.915.016.86.72.419903934.014.222.110.93.719953874.018.727.420.94.620003663.523.437.629.46.620013564.222.538.029.98.120023573.822.638.530.910.220033343.821.839.531.613.620043624.923.740

2、.432.817.420053714.423.642.033.921.120063805.720.142.735.024.420073815.819.540.136.026.720083995.722.340.337.026.8注：2000-2006年猪牛羊肉数据、1997-2006年水产站数据根据农业普查结呆进行了修订。试求样木均值、样木协方差矩阵和样木相关矩阵，并对所得样本观测数据进行主成分分析.解：L3272.87.812.34.61.2;3613.915.016.86.72.4;3934.014.222.110.93.7

3、:3874.018.727.420.94.6;3663.523.437.629.46.6:3564.222.538.029.98.1;3573.822.63&530.910.2;3343.821.839.531.613.6;3624.923.740.432.817.4;3714.423.642.033.921.1;3805.720」42.735.()24.4;3815.819.540」36.026.7;3995.722.340.337.026.&]327.00002.80007.800012.30004.60001.200036

4、1.00003.90(X)15.000016.80006.70002.4000393.00004.000014.200022.100010.90003.7000387.00004.000018.700027.400020.90004.6000366.00003.500023.400037.600029.40006.6000356.00004.200022.500038.000029.90008.1000357.00003.8()(X)22.600038.500()30.900010.200()334.00003.800021.8

5、00039.500031.600013.6000362.00004.900023.700040.400032.800017.4000371.00004.400023.600042.000033.900021.1000380.00005.700020.100042.700035.000024.4000381.00005.800019.500040.100036.000026.7000399.00005.700022.300040.300037.000026.8000»Xl=mcan(ans)XI=367.23084.346219.

6、630833.669226.123112.8308»X2=cov(ans)X2=454.359012.771824.150654.732766.944282.234012.77180.85441.88935.97407.10977.778524.15061.889322.284044.615247.609224.355654.73275.974044.6152107.2906117.185876.206066.94427」()9747.6092117.1858131.421989.560182.23407.778524.3556

7、76.206089.560189.5423»X3=corrcoef(ans)X3=1.00000.64820.24000.24790.27400.40770.64821.00000.43300.62400.67100.88930.24000.43301.00000.91240.87980.54520.24790.62400.91241.00000.98690.77750.27400.67100.87980.98691.()()()()0.82560.40770.88930.54520.77750.82561.0000»[pc,s

8、core,latent,tsquarej=princomp(ans)pc=0.86590.4931-0.07860.0250-0.0105-0.01450.0328-0.01560.0717-0.0314-0.01730.99610.1073-0.2045-0.