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omega1983
Calcite | Level 5

I have totalled a column of numbers

ID         amt            difference

11        -250           125

11         125           125 /*only want to show this number*/

12       -250          -250

proc sql;

create table test as

select id, sum(

case when reg_num = 'w' then amt

        when reg_num = 'y' then amt

   else 0 end)as difference

from main

group by ln_no;

quit;

In the case of ID 11, I want to show the 125 difference in the second instance of the same ID.  So I want to show ID on row 2 and leave row 1 blank.  In the case of ID 12 I want to show the difference because it is the first and only instance.

1 REPLY 1
Linlin
Lapis Lazuli | Level 10

data step is much easier:

data have;

input ID         amt            difference;

cards;

11        -250           125

11         125           125

12       -250          -250

;

data want;

set have;

by id;

if not last.id then difference=.;

proc print;run;

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