跟crakman做sas base认证试题（9）

shiyiming

From crackman's blog on Baidu


               
                <p><font size="4">9. data course;<br>
input exam;<br>
datalines;<br>
50.1<br>
;<br>
run;</font></p>
<p><font size="4">proc format;<br>
value score 1 - 50 = 'Fail'<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  51 - 100 = 'Pass';<br>
run;</font></p>
<p><font size="4">proc report data =course nowd;<br>
column exam;<br>
define exam / display format=score.;<br>
run;</font></p>
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<p><font size="4">What is the value for exam?<br>
A. Fail<br>
B. Pass<br>
C. 50.1<br>
D. No output</font></p>
<p><font size="4">Answer: C<br>
其实这道题考察的是FORMAT的FUZZ<br>
结果是50.1，因为50.1 不在FORMAT VALUE的区间内。如果改成：<br>
proc format;<br>
value score（fuzz=.2） 1 - 50 = 'Fail'<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  51 - 100 = 'Pass';<br>
run;<br>
大家看看！<br>
还有1-50是[1,50]<br>
51-100是[51,100]<br>
</font><a href="http://support.sas.com/documentation/cdl/en/proc/61895/HTML/default/viewer.htm#a002473473.htm"><font size="4"><!-- m --><a class="postlink" href="http://support.sas.com/documentation/cdl/en/proc/61895/HTML/default/viewer.htm#a002473473.htm">http://support.sas.com/documentation/cd ... 473473.htm</a><!-- m --></font></a></p> <a href="http://hi.baidu.com/crack%5Fman/blog/item/4ba09dea7c7079392cf5341c.html">阅读全文</a>
               
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