R package adaptivetau. Tau-Leaping Stochastic Simulation. Implements adaptive tau leaping to approximate the trajectory of a continuous-time stochastic process as described by Cao et al. (2007) The Journal of Chemical Physics <<a href=””>doi:10.1063/1.2745299</a>>. This package is based upon work supported by NSF DBI-0906041 and NIH K99-GM104158 to Philip Johnson and NIH R01-AI049334 to Rustom Antia.