config_ihs: Configuration object for the Improved Harmony Search...

In EmiR: Evolutionary Minimizer for R

Configuration object for the Improved Harmony Search Algorithm

Description

Create a configuration object for the Improved Harmony Search Algorithm (IHS). At minimum the number of iterations (parameter iterations) and the number of solutions in the harmony memory (parameter population_size) have to be provided.

Usage

config_ihs(
  iterations,
  population_size,
  iterations_same_cost = NULL,
  absolute_tol = NULL,
  considering_rate = 0.5,
  min_adjusting_rate = 0.3,
  max_adjusting_rate = 0.99,
  min_distance_bandwidth = 1e-04,
  max_distance_bandwidth = 1
)

Arguments

iterations	maximum number of iterations.
population_size	number of solutions in the harmony memory.
iterations_same_cost	maximum number of consecutive iterations with the same (see the parameter absolute_tol) best cost before ending the minimization. If NULL the minimization continues for the number of iterations specified by the parameter iterations. Default is NULL.
absolute_tol	absolute tolerance when comparing best costs from consecutive iterations. If NULL the machine epsilon is used. Default is NULL.
considering_rate	probability for each component of a newly generated solution to be recalled from the harmony memory.
min_adjusting_rate	minimum value of the pitch adjustment probability.
max_adjusting_rate	maximum value of the pitch adjustment probability.
min_distance_bandwidth	minimum amplitude of the random pitch adjustment.
max_distance_bandwidth	maximum amplitude of the random pitch adjustment.

Value

config_ihs returns an object of class IHSConfig.

References

\insertRef

Mahdavi2007EmiR

Examples

conf <- config_ihs(iterations = 100, population_size = 50, iterations_same_cost = NULL,
absolute_tol = NULL,considering_rate = 0.5, min_adjusting_rate = 0.3,
max_adjusting_rate = 0.99, min_distance_bandwidth = 0.0001, max_distance_bandwidth = 1)

EmiR documentation built on Dec. 10, 2022, 1:12 a.m.