Internal, auxiliary functions
func_iterative_logreg_update(prob_lr, p0, cell_id, signal_levels, cc_maxit)
A list with components
p_opt - a numeric vectors with estimated optimal input probabilities
MI_opt - a numerical value of estimated channel capacity
is a matrix of class probabilities for each observation
is a numeric vector of prior probabilities used for logistic regression estimation
a list of logical vectors indicating class labels of each observation
is a vector of class labels
is the number of iteration of procedure to be carried out