Explicit tau-leap method implementation of the SSA as described by Gillespie (2001). Note that this method does not attempt to select an appropriate value for tau, nor does it implement estimated-midpoint technique.
Value
an object of to be used by ssa().
References
Gillespie D.T. 2001. Approximate accelerated stochastic simulation of chemically reacting systems. J. Chem. Phys. 115:1716-1733. doi:10.1063/1.1378322 .