generate_ellipsoidal_function: Generator for ellipsoidal test functions.

In soobench: Single Objective Optimization Benchmark Functions

Description

The ellipsoidal test function is a badly conditioned variant of the sphere function. The definition used here is

Usage

generate_ellipsoidal_function(dimensions)

Arguments

dimensions

[integer(1)] Size of parameter space.

Details

f(x) = ∑_{i=1}^n 10^{6\frac{i}{n}}x_i^2

Value

A soo_function.

Note that the functions returned by this generator only differ in the elongated axis from those returned by generate_discus_function.

Examples

f <- generate_ellipsoidal_function(2)
plot(f, rank=TRUE)

soobench documentation built on Feb. 9, 2020, 5:08 p.m.