I can view variable UTIL as 0. Before this, I use UTIL=round(a/b,0.0001) to calculate UTIL.
And then I use proc expand as below:
PROC EXPAND data=trade_util out=trade_util1;
ID misdate;
BY customer;
CONVERT util=util_MEAN3 / transformout=(movave 3 lag 1);
RUN;
Do anyone know why for moving average of 3 zeros, I get numbers like
-8.67362E-18
-3.1984E-18
-8.2038E-18
-3.79471E-18
-9.1073E-18
I follow it up with code like this, but how can I avoid this extra step? It has something to do with numeric precision.
data work.trade_util1;
set work.trade_util1;
util_MEAN3=max(0,util_MEAN3);
run;
Would anyone know the reason for the mov average mean to be such small numbers?
Not sure if it could work. Make UTIL be a small length .
length UTIL 3 ;
and why not use INT() ?
Xia Keshan
I thing proc expand is geared for speed and skips the numerical precautions that are common in other procedures. You will have to follow the procedure call with a datastep to round() or fuzz() output values. If only for display, numerical formats will do the rounding for you.
PG
Are you ready for the spotlight? We're accepting content ideas for SAS Innovate 2025 to be held May 6-9 in Orlando, FL. The call is open until September 25. Read more here about why you should contribute and what is in it for you!
Learn the difference between classical and Bayesian statistical approaches and see a few PROC examples to perform Bayesian analysis in this video.
Find more tutorials on the SAS Users YouTube channel.