使用已知的stratas在SAS中创建分层样本

我有一个具有某些特征的目标人群，我被要求根据这些特征选择适当的对照。我正在尝试使用SAS base进行分层采样，但我需要能够从目标中定义我的4个starta%s，并将其应用于我的样本。我有办法做到吗？谢谢大家!

要进行分层抽样，您可以使用

PROC SURVEYSELECT

Here is an example:-

/*Dataset creation*/

data data_dummy;
input revenue revenue_tag Premiership_level;
   datalines;
1000 High 1
90 Low 2
500 Medium 3
1200 High 4
;
run;


/*Now you need to Sort by rev_tag, Premiership_level (say these are the 
 variables you need to do stratified sampling on)*/
proc sort data = data_dummy;
by rev_tag  Premiership_level;
run;



/*Now use SURVEYSELECT to do stratified sampling using 10% samprate (You can 
change this 10% as per your requirement)*/

/*Surveyselect is used to pick entries for groups such that , both the 
  groups created are similar in terms of variables specified under strata*/

     proc surveyselect data=data_dummy method = srs samprate=0.10
     seed=12345 out=data_control;
     strata rev_tag  Premiership_level;
     run;

/*Finally tag (if you want for more clarity) your 10% data as control 
group*/
     Data data_control;
     Set data_control;
     Group = "Control";
     Run;

---

希望这有帮助：-）

要进行分层抽样，您可以使用

PROC SURVEYSELECT

Here is an example:-

/*Dataset creation*/

data data_dummy;
input revenue revenue_tag Premiership_level;
   datalines;
1000 High 1
90 Low 2
500 Medium 3
1200 High 4
;
run;


/*Now you need to Sort by rev_tag, Premiership_level (say these are the 
 variables you need to do stratified sampling on)*/
proc sort data = data_dummy;
by rev_tag  Premiership_level;
run;



/*Now use SURVEYSELECT to do stratified sampling using 10% samprate (You can 
change this 10% as per your requirement)*/

/*Surveyselect is used to pick entries for groups such that , both the 
  groups created are similar in terms of variables specified under strata*/

     proc surveyselect data=data_dummy method = srs samprate=0.10
     seed=12345 out=data_control;
     strata rev_tag  Premiership_level;
     run;

/*Finally tag (if you want for more clarity) your 10% data as control 
group*/
     Data data_control;
     Set data_control;
     Group = "Control";
     Run;

---

希望这有帮助：-）

可能重复的可能重复的可能重复的谢谢！不过，在选定目标群体后，我被要求这样做。我想我在SAS里做不到？插入某些特征的百分比，然后让SAS根据这些百分比对总体进行抽样？你的回答很有帮助，不过非常感谢！非常感谢。不过，在选定目标群体后，我被要求这样做。我想我在SAS里做不到？插入某些特征的百分比，然后让SAS根据这些百分比对总体进行抽样？你的回答很有帮助，不过非常感谢！