plot.ga_parsimony-method: Plot of GA evolution of elitists

In GAparsimony: Searching Parsimony Models with Genetic Algorithms

Plot of GA evolution of elitists

Description

The plot method for ga_parsimony-class objects gives a evolution plot of the validation and testing errors, and the number of model features selected of elitists.

Usage

## S4 method for signature 'ga_parsimony'
plot(x, general_cex = 0.7, min_ylim=NULL, max_ylim=NULL, 
			min_iter=NULL, max_iter=NULL, 
			main_label="Boxplot cost evolution", 
			iter_auto_ylim=3, steps=5, pos_cost_num=-3.1,
			pos_feat_num=-1.7, digits_plot=4, width_plot=12,
			height_plot=6, window=TRUE, ...)

Arguments

x	An object of class "ga_parsimony".
general_cex	Main text scale.
min_ylim	Min limit on the y-axis.
max_ylim	Max limit on the y-axis.
min_iter	Min GA iteration to visualize.
max_iter	Max GA iteration to visualize.
main_label	Main plot title.
iter_auto_ylim	If it is not NULL, GA iteration to choose the min limit of y-axis.
steps	Number of divisions in y-axis.
pos_cost_num	Relative position of numbers in cost axis.
pos_feat_num	Relative position of numbers in feature axis.
digits_plot	Number of digits to visualize.
width_plot	Figure width in inches.
height_plot	Figure height in inches.
window	If TRUE shows a new window.
...	Further arguments, currently not used.

Details

Plot method shows the evolution of validation and testing errors, and the number of model features selected of elitists. White and grey box-plots represent validation and testing errors of elitists evolution, respectively. Continuous and dashed-dotted lines show the validation and testing error of the best individual for each generation, respectively. Finally, the shaded area delimits the maximum and minimum number of features, and the dashed line, the number fo features of the best individual.

Value

The method invisibly return a list with the elistists validation error, testing error and model complexity in the whole GA process.

Author(s)

Francisco Javier Martinez de Pison. [e-mail]. EDMANS Group. https://edmans.webs.com/

See Also

ga_parsimony, ga_parsimony-class.

GAparsimony documentation built on April 7, 2023, 5:11 p.m.