Hello everyone,
I need to find the maximum value of a variable looking at all the previous values in the column. i have a dataset that looks the one listed below. i want to create a variable v4 with the maximum value of all the previous values in the column.
DATASET 1
V1 V2 V3
01 AA 02
01 AA 08
01 AA 03
02 BB 24
02 BB 98
02 BB 24
03 CC 11
03 CC 99
03 CC 15
02 DD 54
DATASET 2
V1 V2 V3 v4
01 AA 02 02
01 AA 08 08
01 AA 03 08
02 BB 24 24
02 BB 98 98
02 BB 24 98
03 CC 11 98
03 CC 99 99
03 CC 15 99
02 DD 54 99
data DATASET1; input (V1 V2 V3) ($); cards; 01 AA 02 01 AA 08 01 AA 03 02 BB 24 02 BB 98 02 BB 24 03 CC 11 03 CC 99 03 CC 15 02 DD 54 ; data dataset2; set dataset1; retain v4; v4=max(v3,v4); run;
Art, CEO, AnalystFinder.com
data DATASET1; input (V1 V2 V3) ($); cards; 01 AA 02 01 AA 08 01 AA 03 02 BB 24 02 BB 98 02 BB 24 03 CC 11 03 CC 99 03 CC 15 02 DD 54 ; data dataset2; set dataset1; retain v4; v4=max(v3,v4); run;
Art, CEO, AnalystFinder.com
Are you ready for the spotlight? We're accepting content ideas for SAS Innovate 2025 to be held May 6-9 in Orlando, FL. The call is open until September 25. Read more here about why you should contribute and what is in it for you!
Learn how use the CAT functions in SAS to join values from multiple variables into a single value.
Find more tutorials on the SAS Users YouTube channel.