natPsoCtrl: R6 class that defines the PSO controller

In dbnR: Dynamic Bayesian Network Learning and Inference

R6 class that defines the PSO controller

Description

Constructor of the 'natPsoCtrl' class

If the names of the nodes have "_t_0" appended at the end, remove it

Initialize the particles for the algorithm to random positions and velocities.

Arguments

n_it	maximum number of iterations of the pso algorithm
in_cte	parameter that varies the effect of the inertia
gb_cte	parameter that varies the effect of the global best
lb_cte	parameter that varies the effect of the local best
r_probs	vector that defines the range of random variation of gb_cte and lb_cte
cte	boolean that defines whether the parameters remain constant or vary as the execution progresses
nodes	a vector with the names of the nodes
ordering	a vector with the names of the nodes in t_0
max_size	maximum number of timeslices of the DBN
n_inds	number of particles that the algorithm will simultaneously process
v_probs	vector that defines the random velocity initialization probabilities
p	parameter of the truncated geometric distribution for sampling edges
score	bnlearn score function used

Details

The controller will encapsulate the particles and run the algorithm. This time, it extends the class "PsoCtrl" in the "structure_learning_psoho.R" file, because both controllers are practically the same. The particles, positions and velocities are too different to extend one another though.

Value

A new 'natPsoCtrl' object

the ordering with the names cropped

dbnR documentation built on Oct. 5, 2022, 1:07 a.m.