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标题: 如何得到特定观测的个数 [打印本页]

作者: shiyiming 时间: 2009-10-26 11:03
标题: 如何得到特定观测的个数
如题，数据集中要得到同一个ID的观测条数

作者: shiyiming 时间: 2009-10-26 23:23
标题: Re: 如何得到特定观测的个数
[code:jdwv9zsz]data a;
input no $ singn;
datalines;
s1 1
s1 1
s1 2
s2 1
s2 2
s2 2
s3 1
s3 1
s4 2
s4 2
;
proc sql;
select no,count(no) as contno from a group by no;
select no,singn,count(no and singn) as contsn from a group by no,singn;
quit;[/code:jdwv9zsz]

作者: shiyiming 时间: 2009-10-28 11:11
标题: Re: 如何得到特定观测的个数
是不是只要count有观测数值的obs就可以了？

proc means data=aa noprint;
by no;
var sign;
output out=count(drop=_type_ _freq_) N=/autoname;
run;

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