This lesson will explain how to calculate simple statistics such as Mean and Standard Deviation.
Example
The codes below compute the mean and standard deviation for each student.
DATA MEAN_AND_SD;
Set Results;
Mean = Mean(ENG, MATH, SCIENCE);
STD = STD (ENG, MATH, SCIENCE);
RUN;
DONE! You have learned to compute mean and standard deviation in SAS.
Note:
- Some other common SAS computing functions are:
- Min (variables, ...): returns minimum result
- Max (variables, ...): returns maximum result
- N (variables, ...): returns number of non-missing result
- NMiss (variables, ...): returns number of missing result
- STDERR (variables, ...): returns standard error
- Var (variables, ...): returns variance - Mean and Standard Deviation can also be done using PROC MEANS or PROC UNIVARIATE. These two procedures will be explained in later lessons.
