race.wrapper: Test a candidate on a task

In race: Racing methods for the selection of the best

Description

The function

race.wrapper(candidate,task,data)

is to be provided by the user. It's definition has to be given (together with the one of race.info) in a file, and the name of such file has to be passed as first argument to the function race.

Arguments

candidate	The candidate to be evaluated: a number between 1 and no.candidates, where no.candidates is the number of candidates and is to be defined within the function race.wrapper itself.
task	The task on which to the candidate should be evaluated: a number between 1 and no.tasks, where no.tasks is the number of tasks available for testing, and is to be defined within the function race.wrapper itself.
data	It is the object of type list (possibly empty) returned by race.init, if the latter is defined by the user.

Value

A number: the result obtained by the given candidate at the given task. If no.subtasks>1 (see race.info), the function is expected to return a vector of length equal to no.subtasks where the component k of such vector is the result obtained by the given candidate on the k-th subtask composing the given task.

Note

Please notice that race is a minimization algorithm: it selects the candidate that obtains the smallest results on the various tasks considered.

Author(s)

Mauro Birattari

See Also

race, race.init, race.info

Examples

# Please have a look at the function `race.wrapper'
# defined in the file `example-wrapper.R':
local({
  source(file.path(system.file(package="race"),
                           "examples","example-wrapper.R"),local=TRUE);
  print(race.wrapper)})

race documentation built on May 29, 2017, 12:03 p.m.