A TaskGenerator for the spirals task in mlbench::mlbench.spirals().

Dictionary

This TaskGenerator can be instantiated via the dictionary mlr_task_generators or with the associated sugar function tgen():

mlr_task_generators$get("spirals")
tgen("spirals")

See also

Super class

mlr3::TaskGenerator -> TaskGeneratorSpirals

Methods

Public methods

Inherited methods

Method new()

Creates a new instance of this R6 class.

Usage

TaskGeneratorSpirals$new()


Method plot()

Creates a simple plot of generated data.

Usage

TaskGeneratorSpirals$plot(n = 200L, pch = 19L, ...)

Arguments

n

(integer(1))
Number of samples to draw for the plot. Default is 200.

pch

(integer(1))
Point char. Passed to plot().

...

(any)
Additional arguments passed to plot().


Method clone()

The objects of this class are cloneable with this method.

Usage

TaskGeneratorSpirals$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.

Examples

generator = tgen("spirals") plot(generator, n = 200)
task = generator$generate(200) str(task$data())
#> Classes ‘data.table’ and 'data.frame': 200 obs. of 3 variables: #> $ y : Factor w/ 2 levels "A","B": 2 1 2 2 1 2 1 1 2 2 ... #> $ x1: num -0.427 0.333 0.583 -0.324 0.339 ... #> $ x2: num 0.777 0 -0.2307 -0.2351 0.0213 ... #> - attr(*, ".internal.selfref")=<externalptr>