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. 2003 Dec;85(6):3460–3474. doi: 10.1016/S0006-3495(03)74767-5

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Copyright © 2003, Biophysical Society

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To choose randomly the transition μ by which the system escapes from the present state we set up an array V containing the cumulative rates, i.e., V[0] = 0, V[1] = V[0] + A₁ = V[0] + λ, V[2] = V[1] + A₂ = V[1] + dx, V[3] = V[2] + A₃ = V[3] + ay_n, etc. Then we draw an equidistributed random number RND from the interval . The process i for which V[i − 1] < RND ≤ V[i] is chosen to be the next process.

Inline graphic — To choose randomly the transition μ by which the system escapes from the present state we set up an array V containing the cumulative rates, i.e., V[0] = 0, V[1] = V[0] + A₁ = V[0] + λ, V[2] = V[1] + A₂ = V[1] + dx, V[3] = V[2] + A₃ = V[3] + ay_n, etc. Then we draw an equidistributed random number RND from the interval . The process i for which V[i − 1] < RND ≤ V[i] is chosen to be the next process.