Mean of missing and unmissing obs

[ChuksManuel]

Hello,

I am trying to find the mean of variables in an observation that has missing values. 

for example, if  T1 T2 T3 are the variables, their mean would be (t1 +t2+t3)/3= T_mean.

However, i discovered that SAS ouput a missing value for T_mean if any of the T1-T3 values are missing.

My question is how do i make sas treat the missing as zero in order to compute the mean.

[PeterClemmensen]

Can you show the code you have now?

[Kurt_Bremser · Accepted solution]

The mean() function handles missing values correctly.

[ChuksManuel]

Thanks!

[PeterClemmensen]

@ChuksManuel just to add to this thread. The Mean Function ignores missing values. It does not treat them as zero. There is a big difference.