Thanks to both Ksharp and Urvish!
Jul 8, 2013 2:46 AM Urvish posting:
what if you have more variables, how should your code be changed?
e.g.
Data one;
input Cusip Year aa aa1 aa2;
cards;
100 97 10 3 2
101 98 2 2 3
102 97 . . .
103 98 2 . 3
;
Data two;
input Cusip Year bb bb1;
cards;
101 98 . 1
102 97 . 0
103 98 3 9
104 99 5 2
;
-Lan
Hi,
Hope it works...In below macro no_of_vars parameter represents matching columns to be compare...like aa1,aa2,aa3, and bb1,bb2,bb3 and so on...so pass the value accordingly...
Here you only have 1 common column like aa1 and bb1....
%macro obs_identify(no_of_vars =);
proc contents data = one noprint
out = one_list(keep = name where = (name ^in ("Cusip" "Year")));
run;
proc contents data = two noprint
out = two_list(keep = name where = (name ^in ("Cusip" "Year")));
run;
proc sql noprint;
select name into :one_list separated by ","
from both_list;
select two_name into :two_list separated by ","
from both_list;
quit;
proc sql;
create table both as
select coalesce(a.cusip,b.cusip) as cusip,
coalesce(a.year,b.year) as year,
&one_list.,&two_list.
case
when a.cusip = b.cusip then "Match"
when aa = . and bb = . then "Match"
/* Loop for Series of Matching Columns */
%do i = 1 %to &no_of_vars.;
when bb&i. = . then "Two"
when aa&i. = . then "One"
%end;
else "Match"
end as source
from one as a
full join
two as b
on a.cusip = b.cusip;
quit;
%mend;
%obs_identify(no_of_vars = 1);
-Urvish
Hi,
You can create the macro variable which contains all the columns from dataset one and dataset two...by this way you can modify 5th line of my code...
proc contents data = one noprint
out = one_name(keep = name where = (name ^in ("Cusip" "Year")));
run;
proc contents data = one noprint
out = one_name(keep = name where = (name ^in ("Cusip" "Year")));
run;
proc sql noprint;
select name into :one_list separated by ","
from one_name;
select name into two_list separated by ","
from two_list;
quit;
And after that just use the following line insted of 5th line...
&one_list., &two_list.,
-Urvish
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