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Gieorgie
Quartz | Level 8

I have a function that selects a file from this month, how to change it so that it always selects from the previous one. for example now select file from september

%let thismonth=%sysfunc(putn(%sysfunc(today()),yymmn6.));
1 ACCEPTED SOLUTION

Accepted Solutions
PaigeMiller
Diamond | Level 26

Instead of providing you with a command that uses %SYSFUNC() three times nested, I will provide what I feel is a simpler method.

 

data _null_;
    call symputx('lastmonth',put(intnx('month',today(),-1),yymmn6.);
run;
--
Paige Miller

View solution in original post

4 REPLIES 4
PaigeMiller
Diamond | Level 26

Instead of providing you with a command that uses %SYSFUNC() three times nested, I will provide what I feel is a simpler method.

 

data _null_;
    call symputx('lastmonth',put(intnx('month',today(),-1),yymmn6.);
run;
--
Paige Miller
Gieorgie
Quartz | Level 8
Thanks ! its working ! so just need put 'lastmonth' to select file_$lastmonth ?
PaigeMiller
Diamond | Level 26

@Gieorgie wrote:
Thanks ! its working ! so just need put 'lastmonth' to select file_$lastmonth ?

&lastmonth

--
Paige Miller
Kurt_Bremser
Super User

Just use INTNX in %SYSFUNC:

%let thismonth=%sysfunc(intnx(month,%sysfunc(today()),-1),yymmn6.);

Note that %SYSFUNC on its own enables the use of a format, so you do not need PUTN.

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