SPparameter-class: Class "SPparameter" --- cSPADE Mining Parameters

Description

Provides the constraint parameters for the cSPADE algorithm for mining frequent sequences.

Arguments

Objects from the Class

A suitable default parameter object will be automatically created by a call to cspade. However, the values can be replaced by specifying a named list with the names (partially) matching the slot names of the '>SPparameter class.

Objects can be created by calls of the form new("SPparameter", support, ...).

Slots

support:: a numeric value specifying the minimum support of a sequence (default 0.1, range [0,1]).
maxsize:: an integer value specifying the maximum number of items of an element of a sequence (default 10, range > 0).
maxlen:: an integer value specifying the maximum number of elements of a sequence (default 10, range > 0).
mingap:: an integer value specifying the minimum time difference between consecutive elements of a sequence (default none, range >= 1).
maxgap:: an integer value specifying the maximum time difference between consecutive elements of a sequence (default none, range >= 0).
maxwin:: an integer value specifying the maximum time difference between any two elements of a sequence (default none, range >= 0).

Methods

coerce: signature(from = "NULL", to = "SPparameter")
coerce: signature(from = "list", to = "SPparameter")
coerce: signature(from = "SPparameter", to = "character")
coerce: signature(from = "SPparameter", to = "data.frame")
coerce: signature(from = "SPparameter", to = "list")
coerce: signature(from = "SPparameter", to = "vector")
format: signature(x = "SPparameter")

Examples

Run this code

# NOT RUN {
## coerce from list 
p <- as(list(maxsize = NULL, maxwin = 5), "SPparameter")
p

## coerce to
as(p, "vector")
as(p, "data.frame")
# }