Function markov_1_binary_entropy_rate 

pub fn markov_1_binary_entropy_rate(p00: f64, p11: f64) -> f64

Theoretical entropy rate for a binary Markov chain with transition probs p00, p11.

H_rate = pi_0 * h(1-p00) + pi_1 * h(1-p11) where h(p) = -p*log2(p) - (1-p)*log2(1-p) is binary entropy.