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标题: 跟crakman做sas base认证试题（39） [打印本页]

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作者: shiyiming    时间: 2010-11-12 17:26
标题: 跟crakman做sas base认证试题（39）
From crackman's blog on Baidu


               
                <p><font size="4"> <br>
39.The following SAS program is submitted:<br>
<br>
data WORK.AUTHORS; <br>
&nbsp;&nbsp;&nbsp;  array Favorites{3} $ 8 ('Shakespeare','Hemingway','McCaffrey');<br>
run; <br>
<br>
What is the value of the second variable in the dataset WORK.AUTHORS?<br>
&nbsp;&nbsp;&nbsp;&nbsp;  A. Hemingway<br>
&nbsp;&nbsp;&nbsp;&nbsp;  B. Hemingwa<br>
&nbsp;&nbsp;&nbsp;&nbsp;  C. ' ' (a missing value)<br>
&nbsp;&nbsp;&nbsp;&nbsp;  D. The program contains errors. No variables are created.</font></p>
<p><font size="4">Answer: B</font></p>
<p><font size="4">本道题考察的是ARRAY与变量之间的关系。<br>
在DATA 步中，ARRYA可以创建新变量。<br>
这里创建了三个变量，变量名分别是<br>
Shakespeare,Hemingway,McCaffrey<br>
每一个变量都是都是字符型数据，长度为8。</font></p> <a href="http://hi.baidu.com/crack%5Fman/blog/item/ce039956bc58261e0df3e3e7.html">阅读全文</a>
               
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