data raw; input group value; datalines; 1 3 1 5 1 8 2 1 2 5 3 3 3 5 3 1 4 5 4 12 4 8 ; data out; do _N_=1 by 1 until(last.group); set raw; by group; max=max(value,max); end; do _N_=1 to _N_;
set raw; output; end;
run;
求助程序中_N_的变化情况？还有怎样循环的？
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bobguy 发表于 2012-1-12 10:01 You can write some put statements which will write information to log as example below. That is how ...
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