sgCMatrix-class {arulesSequences} | R Documentation |
Sparse pseudo matrices in column-compressed form for storing ordered lists of symbols.
Most frequently, an object is created upon creation of an object of
class sequences
or
sequencerules
.
Objects can also be created by calls of the form
new("sgCMatrix", ...)
.
p
:i
, i.e. to the first element of a list. However, note that
the last element contains the number of elements of i
.i
:Dim
:Dimnames
:factors
:coerce
signature(from = "sgCMatrix", to = "list")
coerce
signature(from = "list", to = "sgCMatrix")
coerce
signature(from = "ngCMatrix", to = "sgCMatrix")
dim
signature(x = "sgCMatrix")
dimnames
signature(x = "sgCMatrix")
dimnames<-
signature(x = "sgCMatrix", value = "ANY")
show
signature(x = "sgCMatrix")
The number of rows can be larger than the number of symbols actually
occurring. Thus i
need not be recoded upon subsetting or two
collections of lists with the same index base can be easily combined
(column or row-wise).
Many of the methods of this class implemented in C are currently not interfaced as R methods.
Christian Buchta
Class
sequences
,
timedsequences
,
sequencerules
.
## 3 example sequences x <- list("01" = list(c("A","B"), "C"), "02" = list("C"), "03" = list("B", "B")) ## uses paste s <- as(x, "sgCMatrix") s ## dim(s) dimnames(s)