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标题: 跟crackman读SAS程序（82）--不同类别变量分组输出 [打印本页]

作者: shiyiming 时间: 2010-10-28 14:13
标题: 跟crackman读SAS程序（82）--不同类别变量分组输出
From crackman's blog on Baidu

data crackman; 
input m_1 m_2 n_1 n_2 x_1 x_2; 
cards; 
1 2 7 2 3 4 
3 4 8 3 4 5 
1 3 5 5 6 7 
; 
proc contents data=crackman out=b(keep=NAME); 
run; 
proc sql; 
select name into: names_1 separated by ' ' from b where name like '%_1'; 
select name into: names_2 separated by ' ' from b where name like '%_2'; 
quit; 
data names_1(keep=&names_1) names_2(keep=&names_2); 
set crackman; 
run;
利用了CONTENT过程，输出变量名到数据集B中，然后从B用利用SQL以及WHERE根据不同的分组提出变量名到宏变量。 <a href="http://hi.baidu.com/crack%5Fman/blog/item/55b1df8cb5022f9ba5c27221.html">阅读全文</a>

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