SAS Year Variable to a general date (ex: 20180101)

[Carmine_Rossi]

Good day SAS Community,

I have a question concerning manipulation of dates in SAS. Suppose I have a numerical variable for year (ex: 2016, 2017, etc...) and I instead wanted to generate a second date (DATE9.) variable that would be set to January 1st, for each of those years (ex: 2016-01-01, 2017-01-01).

How would I go about doing this in SAS?

id	year	new_date
1	2015	01JAN2015
2	2014	01JAN2014
3	2008	01JAN2008
4	1999	01JAN1999

Thank you again for your help,

-Carmine

[UdayGuntupalli]

@Carmine_Rossi, 
      You may try this : 

data want;
          set have; 
         dt = DatePart(new_date); 
         Year1 = Year(dt); 
          Month1 = Month(dt);
          Day1 = Day(dt); 
          Hour1 = Hour(dt); 
run;

[novinosrin · Accepted solution]

if year is numeric years

new_date=mdy(1,1,year);

format new_date date9.;

data w;
do year=2015 to 2025;
new_date=mdy(1,1,year);
output;
end;
format new_date date9.;
run;

[Carmine_Rossi]

Thank you very much! The MDY function is what I was looking for!

-Carmine