SAS数据步中如何添加满足= exam1 和 exam2的平均值 的final变量?对于有6个同学的数据集:DATA examgrade;INFILE DATALINES;INPUT studentid$ gender$ major$ exam1 exam2;DATALINES; 001 M BIO 80 84002 M EPI 75 73003 F EPI 90 86004 M BIO 83 8
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DATA examgrade;
INFILE DATALINES;
INPUT studentid$ gender$ major$ exam1 exam2;
final=mean(exam1,exam2);
if final>=75 then grade='S';
else grade='N';
DATALINES;
001 M BIO 80 84
002 M EPI 75 73
003 F EPI 90 86
004 M BIO 83 85
005 F EPI 94 94
006 F EPI 88 84
;RUN;