length: Various vector-like utilities for permutation objects.

Description Usage Arguments Details Author(s) See Also Examples

Description

Various vector-like utilities for permutation objects such as length, names(), etc

Usage

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## S3 method for class 'word'
length(x)
## S3 replacement method for class 'permutation'
length(x) <- value
## S3 method for class 'word'
names(x)
## S3 replacement method for class 'word'
names(x) <- value

Arguments

x

permutation object

value

In function names<-.word(), the new names

Details

These functions have methods only for word objects; cycle objects use the methods for lists. It is easy to confuse the length of a permutation with its size.

It is not possible to set the length of a permutation; this is more trouble than it is worth.

Author(s)

Robin K. S. Hankin

See Also

size

Examples

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x <- rperm(9,5)
names(x) <- letters[1:9]

data(megaminx)
length(megaminx)   # the megaminx group has 12 generators, one per face.
size(megaminx)     # the megaminx group is a subgroup of S_129.


names(megaminx) <- NULL   # prints more nicely.
megaminx

permutations documentation built on May 19, 2017, 9:51 a.m.

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