Webb12 okt. 2024 · Hi SAS experts, My dataset contains duplicate observations and the second observation of the duplicate contains information I need for some variables. I have sorted the data by 2 variables: record_id and event_name, and by using proc sort with nodupkey SAS deletes the second observation of the duplicate. Webbyour data, such as ID 8 in Table 1, because it finds and eliminates them in one simple SAS procedure. When you have duplicates with conflicting information, such as ID 1 in Table 1, other methods are preferable since you will likely need to review the observations in question before removing the duplicates. SAS® version 9 contains a new SORT
How to remove duplicates based on multiple columns in SAS?
Webb20 feb. 2024 · Exploring and Validating Data. In this module, you learn to use SAS procedures that provide insights about your data. You also learn to subset data so you can focus on particular segments, format data so you can easily understand it, and sort data to identify and resolve duplicate values. Sorting Data 1:57. Identifying and Removing … Webb26 jan. 2015 · 1 Answer Sorted by: 1 PROC SORT DATA=work.yourdatasetin OUT=work.datasetout NODUPLICATES ; BY rid ; RUN ; Something like this might also work. proc sql; create table work.yourdatasetout as select distinct * from work.yourdatasetin; quit; Share Improve this answer Follow edited Jan 26, 2015 at 15:41 answered Jan 26, … methodist australia
SAS: How to Use PROC SORT with NODUPKEY - Statology
WebbProblem Note 9123: PROC SORT NODUP may not work correctly on DATA step view In Versions 7 and 8, and SAS 9.0, PROC SORT with the NODUP option may not correctly … Webb12 mars 2024 · Currently, I am using a proc SQL merge and then removing duplicates with a proc sort. proc sql; create table disease as select p.pt_num, p.day, c.dx_cd from person P left join clms C on p.pt_num = c.pt_num and c.clmdate ge p.day-5 and c.clmdate le p.day; quit; proc sort data=disease nodupkey ; by pt_num day dx_cd; run; WebbUsing the DISTINCT option in PROC SQL will also eliminate the duplicates, probably: proc sql; create table nodups4 as select distinct * from test order by b; quit; SORT TWICE You … methodist back and spine