COMB Function
Computes the number of combinations of n elements taken r at a time.
| Categories: | Combinatorial |
| CAS |
Syntax
Required Arguments
n
is a nonnegative integer that represents the total number of elements from which the sample is chosen.
r
is a nonnegative integer that represents the number of chosen elements.
| Restriction | r ≤ n |
Details
The mathematical representation
of the COMB function is given by the following equation:
In the preceding equation, n ≥
0, r ≥ 0, and n≥ r.
If the expression cannot
be computed, a missing value is returned. For moderately large values,
it is sometimes not possible to compute the COMB function.
Example
The following statement
produces this result:
|
SAS Statement
|
Result
|
|---|---|
x=comb(5, 1); |
5 |
See Also
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Last updated: March 16, 2017