Add a Year to a Date Macro

[DavidPhillips2]

I have a macro like:

%let startYear = '1Jul2015:0:0:0'dt;

How can I add a year to the macro? All the examples I have seen have added a year in the dataset rather than the macro.

[PaigeMiller]

I don't understand the question. Your example already has a year in it.

(And we're talking about a macro variable, not a macro, right?)

[DavidPhillips2]

How can I increment a macro variable by one year? 

[PaigeMiller · Accepted solution]

Oh, duh, that should have been obvious but I guess I misread your question.

%let incr_by_one_year=%sysfunc(intnx(dtyear,&startyear,1,s));

%put incr_by_one_year %sysfunc(putn(&incr_by_one_year,datetime16.));

[ballardw]

Is there any particular reason you call a datetime value a date?

[DavidPhillips2]

date would be better

[slchen]

%let startYear ="1Jul2015:0:0:0"dt;
%let newstarYear=%sysfunc(putn(%sysfunc(intnx(dtyear,&startYear,1,s)),datetime19.));
%put &newstarYear;

[RW9]

Personally I would never use macro varaibles (which are text) for manpulating or using date/time numeric data.  I would put them in a parameters dataset, and call them up when needed.  Two beneifts, you can manipulate them using the full simple syntax of base SAS, and they are accessible in numerous manners (i.e. call symput, join/merge, call execute).