blue033066
相同年龄的人只保留一个人的命令怎么写呢??
IF AGE WITH THE SAME VALUE THEN... 肯定不对吧555555
多谢
robustreg
搞不懂你要干什么,写就行了,比如取一下rank,然后if i=j then delete
blue033066
问清楚了,是这个东东:
谢谢楼上啊
proc means nway print;
class serl;
var dong;
output out= hh_nm sum=;
run;
Statsfu
呵呵,可以用proc sql, select unique ... from.. 吗?
everns
proc sort nodupkey;
var x;
run;
amitywei
proc sort data=数据集 nodupkey;
by age;
run;
sean1945
感觉好多东西要学
hongtianli
data m;
input a @@;
cards;
1 2 2 3 4 5 5 6 6 9 8 7 7 10 10 11 11
;
run;
proc sort data=m;
by a;
run;
data n;
set m;
if a = lag(a) then delete;
output;
run;
sophiayama
看了楼上的几种方法,觉得还是这种方法简单:
proc sort data=数据集 nodupkey;
by age;
run;
rtist
[quote]引用第9楼sophiayama于2007-09-11 04:32发表的“”:
看了楼上的几种方法,觉得还是这种方法简单:
proc sort data=数据集 nodupkey;
by age;
run;[/quote]not only simple, but also efficient.