sas典型程序运行及结果解读.doc

例1.1DATA eg15; DO rep=1 TO 5; DO treat=1 TO 6; INPUT x ; OUTPUT; END; END; CARDS; 2.9 4.0 2.6 0.5 4.6 4.0 2.3 3.8 3.2 0.8 4.6 3.3 2.2 3.8 3.4 0.7 4.4 3.7 2.5 3.6 3.4 0.8 4.4 3.5 2.7 3.6 3.0 0.5 4.4 3.7 ; PROC ANOVA; CLASS treat rep; MODEL x=treat;MEANS treat/t;RUN;SAS 系统 2012年03月27日 星期二 下午02时55分40秒 2 The ANOVA ProcedureDependent Variable: x Sum of Source DF Squares Mean Square F Value Pr F Model 5 44.46300000 8.89260000 164.17 F treat 5 44.46300000 8.89260000 164.17 .0001 SAS 系统 2012年03月27日 星期二 下午02时55分40秒 3 The ANOVA Procedure t Tests (LSD) for x NOTE: This test controls the Type I comparisonwise error rate, not the experimentwise error rate. Alpha 0.05 Error Degrees of Freedom 24 Error Mean Square 0.054167 Critical Value of t 2.06390 Least Significant Difference 0.3038 Means with the same letter are not significantly different. t Grouping Mean N treat A 4.4800 5 5 B 3.7600 5 2 B B 3.6400 5 6 C 3.1200 5 3 D 2.5200 5 1 E 0.6600 5 4例3.1data fitness;input name $ & age sex $ high weight;cards;zhang sa 28 m 1.75 60li si 27 f 1.72 58wang wu 31 f 1.80 65;proc print;run;输出结果： SAS 系统 22:17 Saturday, November 1, 2003 1 Obs name age sex high weight 1 zhang sa 28 m 1.75 60 2 li si 27 f 1.72 58 3 wang wu 31 f 1.80 65例3.3data fitness;input name $ 1-8 age 10-11 sex $ 13 high 15-18.2 weight 20-21;cards;zhang sa 28 m 1.75 60li si 27 f 1.72 58wang wu 31 f 1.80 65;proc print;run;例3.6程序data cc;input a $ b ;cards;a 1 b 2 c3 d 4;proc print;run;输出结果： SAS 系统 21:00 Monday, April 7, 2003 1 Obs a b 1 a 1 2 b 2 3 c 3 4 d 4例3.10程序data a(drop=a b);input a $ b $ x3-x5;if a=y then x1=1;if a=n then x1=0;if b=y then x2=1;if b=n then x2=0;cards;y y 0.1 0.3 0.4y n 0.5 0.9 0.8n y 0.7 0.8 0.5;proc print;run;输出结果 SAS 系统 21:00 Monday, April 7, 2003 2 Obs x3 x4 x5 x1 x2 1 0.1 0.3 0.4 1 1 2 0.5 0.9 0.8 1 0 3 0.7 0.8 0.5 0 1例3.16程序data a;do i=1 to 4;input x ;output;end;cards;1 2 3 4 5 6 7 8 9 0;proc print;run;输出结果SAS 系统 21:00 Monday, April 7, 2003 3 Obs i x 1 1 1 2 2 2 3 3 3 4 4 4 5 1 5 6 2 6 7 3 7 8 4 8 9 1 9 10 2 0例3.17（数据中心化）程序array xx4 x1-x4(0 0 0 0);do j=1 to 4;do i=1 to 3;xxj=xxj+yyi,j;end;xxj=xxj/3;end;do i=1 to 3;do j=1 to 4;yyi,j=yyi,j-xxj;end;end;output;do i=1 to 3;do j=1 to 4;xxj=yyi,j;end;output;end;cards;1 2 3 45 6 7 89 0 1 2proc print;run;输出结果 SAS 系统 21:00 Monday, April 7, 2003 7 Obs x1 x2 x3