I have the below code:
Options symbolgen mlogic mfile nomprint;
%macro bymonth;
data _null_;
%do i = - &num_month %to 0;
call symputx('bymonth',put(intnx('month',"&date9"d,&i,'e'),date9.),'g');
;
%put &bymonth;
%end;
run;
%mend;
%bymonth;
I'm starting at - &num_month which is 5, date9 resolves to 16JUN2015. My intent is to use the intnx to count back from -5 to 0 which will pull the complete year of data. Date9 and i are resolving as I intend but &bymonth isn't changing with each iteration.
Any guidance/help will be appreciated. I'll paste some log below for your reading pleasure:
MLOGIC(BYMONTH): Beginning execution.
SYMBOLGEN: Macro variable NUM_MONTH resolves to 05
MLOGIC(BYMONTH): %DO loop beginning; index variable I; start value is -5; stop value is 0; by value is 1.
SYMBOLGEN: Macro variable DATE9 resolves to 16JUN2015
SYMBOLGEN: Macro variable I resolves to -5
MLOGIC(BYMONTH): %PUT &bymonth
SYMBOLGEN: Macro variable BYMONTH resolves to 30JUN2015
30JUN2015
MLOGIC(BYMONTH): %DO loop index variable I is now -4; loop will iterate again.
SYMBOLGEN: Macro variable DATE9 resolves to 16JUN2015
SYMBOLGEN: Macro variable I resolves to -4
MLOGIC(BYMONTH): %PUT &bymonth
SYMBOLGEN: Macro variable BYMONTH resolves to 30JUN2015
30JUN2015
MLOGIC(BYMONTH): %DO loop index variable I is now -3; loop will iterate again.
SYMBOLGEN: Macro variable DATE9 resolves to 16JUN2015
SYMBOLGEN: Macro variable I resolves to -3
MLOGIC(BYMONTH): %PUT &bymonth
SYMBOLGEN: Macro variable BYMONTH resolves to 30JUN2015
Mark,
Another key piece of information: these notes do not represent the first time you tried the macro. The first time, you got messages about &BYMONTH not being resolved.
The basic problem is that %PUT is not part of a DATA step, but CALL SYMPUTX only executes when the DATA step runs. So the first time this ran, the order of execution of your statements was:
%PUT
%PUT
%PUT
%PUT
%PUT
%PUT
data _null_;
call symputx
call symputx
call symputx
call symputx
call symputx
call symputx
run;
In fact, that's the order of execution every time, not just the first time. But after the DATA step has run once, &BYMONTH exists and the %PUT statements can write it out. This link may help:
Good luck.
Mark,
Another key piece of information: these notes do not represent the first time you tried the macro. The first time, you got messages about &BYMONTH not being resolved.
The basic problem is that %PUT is not part of a DATA step, but CALL SYMPUTX only executes when the DATA step runs. So the first time this ran, the order of execution of your statements was:
%PUT
%PUT
%PUT
%PUT
%PUT
%PUT
data _null_;
call symputx
call symputx
call symputx
call symputx
call symputx
call symputx
run;
In fact, that's the order of execution every time, not just the first time. But after the DATA step has run once, &BYMONTH exists and the %PUT statements can write it out. This link may help:
Good luck.
That did help. I was getting the right answer but I wanted to see it before, I would have needed to make this update for the next step anyway.
thanks for pointing me in the right direction,
Mark
For anyone that searches for answers before asking the forum, here's the solution:
%macro bymonth;
%do i = &num_month %to 10;
data _null_;
call symputx('bymonth',put(intnx('month',"&date9"d,&i,'e'),date9.),'g');
run;
data test&i;
test = substr("&bymonth",3,3);
run;
%end;
%mend;
%bymonth;
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