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PRISCILABRA
Fluorite | Level 6

I WOULD LIKE TO REMOVE DUPLICATES FROM A VARIABLE KEY TO THE MAXIMUM DATE OF ANOTHER VARIABLE AND I DO NOT KNOW HOW, CAN YOU HELP ME?

Example:

 

COLUMN A(KEY)  COLUMN B(DATE)

1                             20170422

1                             20170423

1                             20170425

 

I NEED THE SAME KEY WITH MAXIMUM DATE, REMOVING THE DUPLICATED KEYS KEEPING THE KEYWORK WITHOUT DUPLICATION FOR THE LAST DATE AVAIABLE TO THIS KEY. CAN YOU UNDERSTAND ME? TKS

4 REPLIES 4
novinosrin
Tourmaline | Level 20

proc sql;

select *

from have

group by key

having date=max(date);

quit;/*date is column b*/

PRISCILABRA
Fluorite | Level 6

Sorry for my answer, thanks a lot for your help.

 

 

Astounding
PROC Star

SAS contains tools to handle this:

 

proc sort data=have;

by key date;

run;

 

data want;

set have;

by key date;

if last.key;

run;

RW9
Diamond | Level 26 RW9
Diamond | Level 26

Nope, can't understand you, maybe your CapsLock is stuck?  Maybe sort the data in order, then take last or first value?

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