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.
