I am looking for syntax to change the missing values of a variable to the average of the remaining values of the same variable
for example:
for the variable duration-
duration : 10 20 30 40 . . . ( . meaning missing values )
I want to replace the three missing values with the average of 10 20 30 40. I want to repliate this over a variable having more than 1000 values.
Can anyone help me out ?
Many Thanks!
data have;
input duration;
cards;
10
20
30
40
.
.
.
;
run;
proc stdize data=have missing=mean reponly out=want;
var _numeric_;
run;
As an option, you could also do:
proc sql; create table WANT as select coalesce(DURATION,(select mean(DURATION) from HAVE)) as DURATION from HAVE; quit;
Not having a nested clause speeds things up a bit.
create table WANT as
select coalesce(DURATION, mean(DURATION) ) as DURATION
from HAVE;
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