R Language offers a direct function that can compute the nCr value without writing the whole code for computing nCr value.
Syntax: choose(n, r)
Parameters:
n: Number of elements
r: Number of combinationsReturns: The number of r combinations from a total of n elements, i.e, nCr value.
Example 1:
# R program to calculate nCr value # Using choose() method answer1 < - choose( 3 , 2 )
answer2 < - choose( 3 , 7 )
answer3 < - choose( 7 , 3 )
print (answer1)
print (answer2)
print (answer3)
|
Output:
3 0 35
Example 2: If we provide the value of n and r such that n < r then choose(n, r) will return 0.
# R program to calculate nCr value # Using choose() method answer1 < - choose( 2 , 3 )
answer2 < - choose( 3 , 6 )
answer3 < - choose( 3 , 7 )
print (answer1)
print (answer2)
print (answer3)
|
Output:
0 0 0
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