proc sql
ケースまたはレコードに情報が不足しているかどうかを識別するために、sasで使用したいと思います。2つのデータセットがあります。1つはデータ収集全体の記録であり、訪問中に収集されたフォームを示します。2つ目は、訪問中に収集する必要のあるフォームの仕様です。私はデータステップやSQLコードを含む多くのオプションをnot in
無駄に使用して試しました...
データの例を以下に示します
***** dataset crf is a listing of all forms that have been filled out at each visit ;
***** cid is an identifier for a study center ;
***** pid is an identifier for a participant ;
data crf;
input visit cid pid form ;
cards;
1 10 101 10
1 10 101 11
1 10 101 12
1 10 102 10
1 10 102 11
2 10 101 11
2 10 101 13
2 10 102 11
2 10 102 12
2 10 102 13
;
run;
***** dataset crfrule is a listing of all forms that should be filled out at each visit ;
***** so, visit 1 needs to have forms 10, 11, and 12 filled out ;
***** likewise, visit 2 needs to have forms 11 - 14 filled out ;
data crfrule;
input visit form ;
cards;
1 10
1 11
1 12
2 11
2 12
2 13
2 14
;
run;
***** We can see from the two tables that participant 101 has a complete set of records for visit 1 ;
***** However, participant 102 is missing form 12 for visit 1 ;
***** For visit 2, 101 is missing forms 12 and 14, whereas 102 is missing form 14 ;
***** I want to be able to know which forms were **NOT** filled out by each person at each visit (i.e., which forms are missing for each visit) ;
***** extracting unique cases from crf ;
proc sql;
create table visit_rec as
select distinct cid, pid, visit
from crf;
quit;
***** building the list of expected forms by visit number ;
proc sql;
create table expected as
select x.*,
y.*
from visit_rec as x right join crfrule as y
on x.visit = y.visit
order by visit, cid, pid, form;
quit;
***** so now I have a list of which forms that **SHOULD** have been filled out by each person ;
***** now, I just need to know if they were filled out or not... ;
私が試みてきた戦略は、訪問ごとにどのフォームが欠落しているかを示すいくつかの指標を使用してexpected
、テーブルにマージすることです。crf
最適には、visit、cid、pid、missing_formのテーブルを作成したいと思います。
どんなガイダンスでも大歓迎です。