Figure 1From: Ergodicity of stochastic smoking model and parameter estimation Computer simulation of the path \(\pmb{(x_{1}(t),x_{2}(t),x_{3}(t),x_{4}(t))}\) with initial value \(\pmb{x_{1}(0)=250}\) , \(\pmb{x_{2}(0)=700}\) , \(\pmb{x_{3}(0)=450}\) , \(\pmb{x_{4}(0)=400}\) for the SDE ( 4 ) and its corresponding deterministic model ( 1 ), using the EM method with step size \(\pmb{\Delta=0.001}\) . Back to article page