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《《非参数统计》与MATLAB编程 第七章 区组设计问题》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。
1、第七章区组设计问题§7.1p=friedman(X,reps)%reps是指区组重复的次数，详细说明请看matlab的anova2帮助文件。p=friedman(X,reps,'off')%不显示方差分析表p=friedman(X,reps,'on')%显示方差分析表[p,table]=friedman(...)[p,table,stats]=friedman(...)B=2B=3B=1处理：A=1A=2此时，rep=3，即：p=friedman(X,3)idea=[737567616979;8381998285
2、87;736073776874;586464717774;777573598582]'%每一列代表一个处理idea=738373587775816064756799736473618277715969856877857987747482[p,table,stats]=friedman(idea,1)%每一个兔子没有重复试验p=0.0056table='Source''SS''df''MS''Chi-sq''Prob>Chi-sq''Columns'[35.0000][4][8.7500][14.6087][0.0
3、056]'Error'[22.5000][20][1.1250][][]'Total'[57.5000][29][][][]stats=source:'friedman'n:6meanranks:[2.50004.91672.25001.91673.4167]sigma:1.5478按p114（7.7）式，根据书上表7.3，计算'Chi-sq'值：12/30*35/(1-1/24)ans=14.6087p=1-chi2cdf(14.6087,4)p=0.0056因此，有差异。[compares,means]=mu
4、ltcompare(stats)%参见《统计学原理》中的方差分析Note:Intervalscanbeusedfortestingbutarenotsimultaneousconfidenceintervals.compares=1.00002.0000-4.8543-2.41670.02101.00003.0000-2.18770.25002.68771.00004.0000-1.85430.58333.02101.00005.0000-3.3543-0.91671.52102.00003.00000.2290
5、2.66675.10432.00004.00000.56233.00005.43772.00005.0000-0.93771.50003.93773.00004.0000-2.10430.33332.77103.00005.0000-3.6043-1.16671.27104.00005.0000-3.9377-1.50000.9377means=2.50000.63194.91670.63192.25000.63191.91670.63193.41670.6319习题4．①用Friedman方法检验c=[15.5
6、420.521.3121.8921.2927.28;21.3417.5219.2520.5623.0024.04]'c=15.540021.340020.500017.520021.310019.250021.890020.560021.290023.000027.280024.0400[p,table,stats]=friedman(c,2)p=0.6547table='Source''SS''df''MS''Chi-sq''Prob>Chi-sq''Columns'[0.3333][1][0.3333][0.
7、2000][0.6547]'Interaction'[4.6667][2][2.3333][][]'Error'[10][6][1.6667][][]'Total'[15][11][][][]stats=source:'friedman'n:3meanranks:[2.66672.3333]sigma:1.2910P值为0.6547，接受原假设。两冷冻方法相同②普通的双因素方差分析[p,table,stats]=anova2(c,2)p=0.82020.07300.6933table='Source''SS''d
8、f''MS''F''Prob>F''Columns'[0.3675][1][0.3675][0.0564][0.8202]'Rows'[54.4530][2][27.2265][4.1775][0.0730]'Interaction'[5.0788][2][2.5394][0.3896][0.6933]'Error'[39.1041][6][6.5174][][]'Tot
