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PERM 
Category:  Mathematical 
Syntax  
Arguments  
Details  
Examples  
See Also 
Syntax 
PERM(n<,r>) 
Restriction:  r n 
Details 
The mathematical representation of the PERM function is given by the following equation:
with n 0, r 0, and n r.
If the expression cannot be computed, a missing value is returned.
Examples 
SAS Statements  Result 

x=perm(5,1); 
5 
x=perm(5); 
120 
x=perm(5,2) 
20 
See Also 
Functions:

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