makeMPM2Function: Generator for function with multiple peaks following the...
In jakobbossek/smoof: Single and Multi-Objective Optimization Test Functions

makeMPM2Function

R Documentation

Generator for function with multiple peaks following the multiple peaks model 2.

Description

Generator for function with multiple peaks following the multiple peaks model 2.

Usage

makeMPM2Function(
  n.peaks,
  dimensions,
  topology,
  seed,
  rotated = TRUE,
  peak.shape = "ellipse",
  evaluation.env = "R"
)

Arguments

`n.peaks`	[`integer(1)`] Desired number of peaks, i. e., number of (local) optima.
`dimensions`	[`integer(1)`] Size of corresponding parameter space.
`topology`	[`character(1)`] Type of topology. Possible values are “random” and “funnel”.
`seed`	[`integer(1)`] Seed for the random numbers generator.
`rotated`	[`logical(1)`] Should the peak shapes be rotated? This parameter is only relevant in case of elliptically shaped peaks.
`peak.shape`	[`character(1)`] Shape of peak(s). Possible values are “ellipse” and “sphere”.
`evaluation.env`	[`character(1)`] Evaluation environment after the function was created. Possible (case-insensitive) values are “R” (default) and “Python”. The original generation of the problem is always done in the original Python environment. However, evaluation in R is faster, especially if multiple MPM2 functions are used in a multi-objective setting.

Value

[smoof_single_objective_function] An object of class SingleObjectiveFunction, representing the Multiple peaks model 2 Function.

Author(s)

R interface by Jakob Bossek. Original python code provided by the Simon Wessing.

References

See the technical report of multiple peaks model 2 for an in-depth description of the underlying algorithm.

Examples

## Not run: 
fn = makeMPM2Function(n.peaks = 10L, dimensions = 2L,
  topology = "funnel", seed = 123, rotated = TRUE, peak.shape = "ellipse")
if (require(plot3D)) {
  plot3D(fn)
}

## End(Not run)
## Not run: 
fn = makeMPM2Function(n.peaks = 5L, dimensions = 2L,
  topology = "random", seed = 134, rotated = FALSE)
plot(fn, render.levels = TRUE)

## End(Not run)

jakobbossek/smoof documentation built on Feb. 17, 2024, 2:23 a.m.