Routine plofronts

Structure containing the main information about the individuals of the final population (as provided by tracker)

• nbindiv: number of individuals in the population
• nbinputs: number of explanatory variables (including fictitious variables if any)
• nbfinputs: number of fictitious variables added to get simpler trees
• f2nfinputs: row vector (1 x $nbfinputs$) containing the numbers of the explanatory variables
  associated to the fictitious variables (only if $nbfvar~=0$)
• degfinputs: row vector (1 x $nbfinputs$) containing the relative degrees of the explanatory variables
  associated to the fictitious variables (only if $nbfvar~=0$)
• indiv: cell vector containing a representation of the parse trees associated to the individuals of the population (each component includes 2 cells of char containing the chromosomes associated to the numerator $Pop.indiv\{i\}(1)$ and denominator $Pop.indiv\{i\}(2)$)
• fitness: vector containing the fitnesses of the individuals of the population
• nbnodes: vector containing the numbers of nodes of the individuals of the population
• param: cell vector containing the monomials coefficients (vector) for the individuals of the population ordered as follows:
  • $param\{i\}(1)$ = constant term of the numerator for the $i^{th}$ individual of the population
  • $param\{i\}(2:l+1)$ = coefficients associated to the $l$ numerator monomials
    for the $i^{th}$ individual of the population (apart from the constant term)
  • $param\{i\}(l+2:l+m+1)$ = coefficients associated to the $m$ denominator monomials
    for the $i^{th}$ individual of the population (apart from the constant term frozen to 1)
• nbreg: vector containing the number of regressors associated to any individual in the population ($l+m$)
• degmax: vector containing the max degree of the regressors associated to any individual in the population
• sumdeg: vector containing the total degree associated to any individual in the population