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论坛 数据科学与人工智能 数据分析与数据科学 SAS专版
1618 2
2015-08-24

The SAS data setnamed WORK.TEST is listed below: capacity airplanetype staff 150Large 10


Which one of thefollowing SAS programs created this data set?


A. data work.test;capacity = 150;



if 100 le capacityle 200 then


airplanetype ='Large' and staff = 10; else airplanetype = 'Small' and staff = 5;run;


B. data work.test;capacity = 150;


if 100 le capacityle 200 then do;


airplanetype ='Large'; staff = 10; end; else do;


airplanetype ='Small'; staff = 5; end; run;


C. data work.test;capacity = 150;


if 100 le capacityle 200 then do;


airplanetype ='Large'; staff = 10; else do;


airplanetype ='Small'; staff = 5; end; run;


D. data work.test;capacity = 150;


if 100 le capacityle 200 then; airplanetype = 'Small'; staff = 5; else;


airplanetype ='Large'; staff = 10; run;


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2015-8-25 01:15:05
这题应该是b吧? A错在if/then statement的then后面只会执行一个action 多于一个action的话需要用do loop. C的话do loop不完整需要end. D很明显本来逻辑就与题目不符.
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2015-8-25 02:40:22
Thank you very much, Cool_Beans. I realize that my knowledge in "do loop" is too limited. Would you please recommend any papers/books to read?
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