Solved: assigning a value to a variable through a condition.

soumri · Posted 06-05-2016 11:36 AM

Hi there;

i need a help please:

my data is like this:

id ne dv

v 01 1 12/03/2008

v 01 3 05/12/2012

v 02 1 31/01/2009

v 02 2 05/04/2011

v 02 3 11/09/2003

v 08 2 03/06/2014

what i want:

id ne dv dv_1 dv_2 dv_3

v 01 1 12/03/2008 12/03/2008 . 05/12/2012

v 01 3 05/12/2012 12/03/2008 . 05/12/2012

v 02 1 31/01/2009 31/01/2009 05/04/2011 11/09/2003

v 02 2 05/04/2011 31/01/2009 05/04/2011 11/09/2003

v 02 3 11/09/2003 31/01/2009 05/04/2011 11/09/2003

v 08 2 03/06/2014 . 03/06/2014 .

ne= measurement order
dv = date of a measurement

therefore, the table want should contain 3 new variables (dv_1 dv_2 and dv_3).
dv_1 contains the dates that correspond to ne= 1;
dv_2 contains the dates that correspond to ne= 2;
dv_3 contains the dates that correspond to ne= 3;

help me please.

PGStats · Posted 06-05-2016 02:36 PM

Try this:

proc sql;
create table u as select unique * from have order by id; 
quit;

proc transpose data=u out=v(drop=_name_) prefix=dv_;
by id;
id ne;
var dv;
run;

data want;
merge have v;
by id;
run;

PG

View solution in original post

PGStats · Posted 06-05-2016 02:36 PM

Try this:

proc sql;
create table u as select unique * from have order by id; 
quit;

proc transpose data=u out=v(drop=_name_) prefix=dv_;
by id;
id ne;
var dv;
run;

data want;
merge have v;
by id;
run;

PG

soumri · Posted 06-05-2016 06:13 PM

dear PGStats;

Yes, yes.. it works very well. Thanks a lot.

assigning a value to a variable through a condition.

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