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HeatherNewton
Quartz | Level 8
where put(B.MONYYYY,MONYY7.)=put(a.default_mth+1,MONYY7.)

in this command does 1 means add one month?

3 REPLIES 3
sbxkoenk
SAS Super FREQ

1 DAY

data have;
input MONYYYY : date9. default_mth : date9.;
*format MONYYYY default_mth monyy7.;
cards;
21FEB2024 20FEB2024
;
run;

data want;
 set have;
 where put(/*B.*/MONYYYY,MONYY7.)=put(/*a.*/default_mth+1,MONYY7.);
run;
/* end of program */

Koen

Patrick
Opal | Level 21

@HeatherNewton wrote:
where put(B.MONYYYY,MONYY7.)=put(a.default_mth+1,MONYY7.)

in this command does 1 means add one month?


You've got already the answer that +1 adds one day to a SAS date value. 

The comparison then first writes the SAS date values as a string using a format that prints month and year. So what this selection logic obviously is doing is to only select rows where both dates are within the same month. 

Another way to write this expression would be:

where intck('month',B.MONYYYY, a.default_mth+1)=0

 

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