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标题: 跟crakman做sas base认证试题（13） [打印本页]

作者: shiyiming 时间: 2010-11-11 02:06
标题: 跟crakman做sas base认证试题（13）
From crackman's blog on Baidu

13.The following SAS program is submitted: 
 
data WORK.TEST; 
    set WORK.MEASLES(keep=Janpt Febpt Marpt); 
    array Diff{3} Difcount1-Difcount3; 
    array Patients{3} Janpt Febpt Marpt; 
run; 
 
What new variables are created? 
     A. Difcount1, Difcount2 and Difcount3 
     B. Diff1, Diff2 and Diff3 
     C. Janpt, Febpt, and Marpt 
     D. Patients1, Patients2 and Patients3
Answer: A
在编译过程中，SAS直接在PDV中，加入ARRAY里面定义的变量。 <a href="http://hi.baidu.com/crack%5Fman/blog/item/f659c2eb1dab0826adafd5cf.html">阅读全文</a>

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