/* Method #2 using the UPDATE statement */
data want;
update input_table (obs=0) input_table;
by id year;
run;
This is a great piece of code! Thank you for this. I would like to understand how it works though. Thanks again!
I am trying to do something similar except, if value 1 has more then then one value I need the table to include an additional row.
DATA HAVE
Obs id year value1 value2 value3
1 1 1999 - 270 350
2 1 1999 850 - -
3 1 1999 450 - -
4 2 2000 10 20 -
5 2 2000 - - 15
6 3 2001 - 55 -
7 3 2001 - 65 -
8 3 2001 - 75 -
9 4 2002 - - 85
10 4 2002 99 - -
DATA WANT
Obs id year value1 value2 value3
1 1 1999 850 270 350
1 1 1999 450 - -
2 2 2000 10 20 15
3 3 2001 - 55 -
4 3 2001 - 65 -
5 3 2001 - 75 -
6 4 2002 99 - 85
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