combinadic: i-th combination of n elements taken from r

In llrs/BioCor: Functional similarities

i-th combination of n elements taken from r

Description

Function similar to combn but for larger vectors. To avoid allocating a big vector with all the combinations each one can be computed with this function.

Usage

combinadic(n, r, i)

Arguments

n	Elements to extract the combination from
r	Number of elements per combination
i	ith combination

Value

The combination ith of the elements

Author(s)

Joshua Ulrich

References

StackOverflow answer 4494469/2886003

See Also

combn()

Examples

# Output of all combinations
combn(LETTERS[1:5], 2)
# Otuput of the second combination
combinadic(LETTERS[1:5], 2, 2)

llrs/BioCor documentation built on April 24, 2024, 5:50 p.m.