phonTools (version 0.2-2.0)

combocalc: Combinations and Permutations

Description

Calculate the number of combinations or permutations for a number of objects.

Usage

combocalc (objects, choose, order = FALSE, repetition = TRUE)

Arguments

objects

The number of different kinds of objects available for selection.

choose

The number of objects selected at a given time.

order

If TRUE, the order of the objects matters, for example aba != aab.

repetition

If TRUE, a sequence such as bbb is permissible.

Examples

# combinations, no repetition
combocalc (10, 4, order = FALSE, repetition = FALSE)
# combinations, with repetition
combocalc (10, 4, order = FALSE, repetition = TRUE)
# permutations, no repetition
combocalc (10, 4, order = TRUE, repetition = FALSE)
# permutations, with repetition
combocalc (10, 4, order = TRUE, repetition = TRUE)