[学习分享] SAS专版精要贴索引目录－－JUN 07, 2013更新... [推广有奖]

41楼

迅哥儿2012

发表于 2013-4-15 23:28:33

辛苦了！

waiting

42楼

hlyz2008 发表于 2013-4-15 23:29:24

很不错的帖子，顶你！！！

43楼

webgu 发表于 2013-4-16 08:58:52

新增 playmore 宏系列。

SAS资源
1. SAS 微信：StatsThinking
2. SAS QQ群：348941365

44楼

402play 发表于 2013-4-16 14:49:04

options

mprintsymbolgen mlogic

   ;

%macro ransample_data(dsin,dsout,Replacement,SampleSize);

%if %upcase("&Replacement")="YES"  %then%do;

%*creating random sample with replacement;

data &dsout(drop=i);

do i=1to &SampleSize;

      PickIt=ceil(ranuni(123)*TotObs);

      ObsPicked=PickIt;

      set &dsin point=PickIt nobs=TotObs;

      output;

   end;

   stop;

run;

%end;

%else  %if %upcase("&Replacement")="NO"  %then%do;

%* create random sample without replace;

  data &dsout(drop=SampleSize ObsLeft);

      SampleSize=&SampleSize;

      ObsLeft=TotObs;

      do while(SampleSize>0and ObsLeft>0) ;

         PickIt+1;

      if ranuni(123)<SampleSize/ObsLeft then

         do;

            ObsPicked=PickIt;

            set &dsin point=PickIt nobs=TotObs;

            output;

            SampleSize=SampleSize-1;

            end;

            ObsLeft=ObsLeft-1;

         end;

   stop;

run;

%end;

%else  %putERROR:Replacement shout be  yes or no ;

%mendransample_data;

%ransample_data(sashelp.class, class_data_rep,yes,10);

%ransample_data(sashelp.class, class_data_norep,no,10);

  %ransample_data(sashelp.class, class_data_norep,whatever,10);