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1、单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,合 计,X,1,Y,1,X,2,Y,2,X,3,Y,3,X Y,（,“,3.,中的分析项目”与方差分析一致,）,（,与回归分析一致,）,（,b,c,:,公共回归系数，）,data,anocov1;do c=,1,to,3,;,do i=,1,to,8,;input x y;,output;end;end,;,cards;,15 85 13 83 11 65 12 76 12 80 16 91 14 84 17 90,17 97 16 90 18 100 18 95 21 103 22 106 19 99
2、18 94,22 89 24 91 20 83 23 95 25 100 27 102 30 105 32 110,;,proc,glm,;class c;,model y=c x/solution SS3;/*solution:,输出回归系数并检验*,/,lsmeans,c /*,输出修正均数*,/,/,stderr,/*,输出修正均数的标准误*,/,pdiff,;/*,输出修正均数两两比较的,P,值*,/,run,The GLM Procedure,Dependent Variable:y,Sum of,Source DF Squares Mean Square F Value Pr F,
3、Model 3 2328.343765 776.114588 68.20 F,x 1 1010.760432,1010.760432,88.81 .0001,c 2,707.218765,353.609382,31.07,|t|,Intercept 35.94 B 6.58 5.47 .0001,x,2.40,0.25 9.42 .0001,c 1 12.79 B 3.41 3.75 0.0013,c 2 17.34 B 2.41 7.20|t|Number,1 94.9586305 1.8403872 .0001 1,2 99.5009807 1.2033114 .0001 2,3 82.1
4、653887 1.9643967|t|for H0:,LSMean(i,)=,LSMean(j,),Dependent Variable:y,i/j,1 2 3,1 0.0424 0.0013,2 0.0424 .0001,3 0.0013 F,Model 14 73529.47080 5252.10506 49.39|t|,Intercept -89.11127107 B 22.52742119 -3.96 0.0007,x,0.40883873,0.05365136 7.62 F,x 1 6175.030521,6175.030521,58.07 F,Model 3 68523072.11
5、 22841024.04 557.41 F,c 1 139769.3397,139769.3397,3.41,0.0762,x1 1 938153.7036,938153.7036,22.89|t|,Intercept -1255.559200 B 493.5333290 -2.54 0.0172,c 1 136.828607 B 74.0867551 1.85 0.0762,c 2 0.000000 B .,x1,54.477217,11.3853803 4.78|t|Pr|t|,1 4013.45764 52.32694 .0001 0.0762,2 3876.62903 52.32694
6、 F,x 1 11.64672712 11.64672712 231.34 .0001,A 1 0.95559296 0.95559296 18.98 F,x 1 11.56281448 11.56281448 226.23 .0001,A 1 1.23967286 1.23967286 24.25|t|,Intercept -.2726531659 B 0.10382857 -2.63 0.0118,x 0.3002040722 0.01995932 15.04 .0001,A 37 0.4166533813 B 0.08460231 4.92 .0001,A 213 0.000000000
7、0 B .,B 30 0.2014621753 B 0.06790593 2.97 0.0048,B 40 0.0000000000 B,（公共回归系数,=0.3002040722,，,P|t|Pr|t,37 2.01042138 0.05323438 .0001 .0001,213 1.59376800 0.05522732|t|Pr|t|,30 1.90282577 0.05489562 .0001 0.0048,40 1.70136360 0.03996573 0,，棉籽重量与棉花产量正相关,;,因修正均数,2.011.59,，,37,号品种优于,213,品种；,因修正均数,1.901.
8、70,行距,30,优于行距,40,。,练 习,1,、（,1,版）,P220,计算分析题,1,题,2,、（,1,版）,P220,计算分析题,2,题,3,、,镉作业工人接触烟尘年数与肺活量的关系数,据如下表，作协方差分析。,甲组,暴露,10,年,乙组,暴露,10,年,X1(,年龄）,Y1(,肺活量，,L,）,X1(,年龄）,Y1(,肺活量,L,）,39,4.62,43,4.61,40,5.29,39,4.73,41,5.52,38,4.58,41,3.71,42,5.12,45,4.02,43,3.89,49,5.09,43,4.62,52,2.70,37,4.30,47,4.31,50,2.70,61,2.70,50,3.50,65,3.03,45,3.06,58,2.73,48,4.06,59,3.67,51,4.51,46,4.66,58,2.88,38,3.64,38,5.09,
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