Various vector-like utilities for permutation objects.
Various vector-like utilities for permutation objects such as
length, names(), etc
## 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
x |
permutation object |
value |
In function |
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.
Robin K. S. Hankin
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
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