[/size:i5jrti5y][/color:i5jrti5y]作者: shiyiming 时间: 2012-1-10 07:20 标题: Re: 请教一个问题 To do it before analyzing the data may be one better choice. If you agree how RANK dealing with tied values, you can try proc rank to select the 90% time (each 5% for lower and upper):
[code:2px8oluw]proc rank data=Have out=rankHave(where =(timeRank not in (0 19))) groups=20;
var time;
ranks timeRank;
run;[/code:2px8oluw]
JingJu