I am trying to create a variable from the following dataset.
Company year OUT
A 2001 0
A 2002 0
A 2003 0
A 2004 1
A 2005 0
A 2006 0
A 2007 0
A 2008 0
B 2000 0
B 2001 0
B 2002 0
B 2003 1
B 2004 0
B 2005 0
B 2006 0
B 2007 0
B 2008 0
B 2009 0
I want to create a new variable NEW for all firm-observations where OUT =1 and year less than 2009.
Company year OUT NEW
A 2001 0 1
A 2002 0 1
A 2003 0 1
A 2004 1 1
A 2005 0 1
A 2006 0 1
A 2007 0 1
A 2008 0 1
B 2000 0 0
B 2001 0 0
B 2002 0 0
B 2003 1 0
B 2004 0 0
B 2005 0 0
B 2006 0 0
B 2007 0 0
B 2008 0 0
B 2009 0 0
Any suggession will be helpful.
Simpler this time, if I understand your request correctly :
data have;
input Company $ year OUT;
datalines;
A 2001 0
A 2002 0
A 2003 0
A 2004 1
A 2005 0
A 2006 0
A 2007 0
A 2008 0
B 2000 0
B 2001 0
B 2002 0
B 2003 1
B 2004 0
B 2005 0
B 2006 0
B 2007 0
B 2008 0
B 2009 0
;
proc sql;
create table want as
select *, max(OUT) > 0 and max(year) < 2009 as NEW
from have
group by company
order by company, year;
select * from want;
quit;
PG
Simpler this time, if I understand your request correctly :
data have;
input Company $ year OUT;
datalines;
A 2001 0
A 2002 0
A 2003 0
A 2004 1
A 2005 0
A 2006 0
A 2007 0
A 2008 0
B 2000 0
B 2001 0
B 2002 0
B 2003 1
B 2004 0
B 2005 0
B 2006 0
B 2007 0
B 2008 0
B 2009 0
;
proc sql;
create table want as
select *, max(OUT) > 0 and max(year) < 2009 as NEW
from have
group by company
order by company, year;
select * from want;
quit;
PG
Thanks PGstats for the prompt solution.
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