[R-sig-dyn-mod] How to use the ode23tb method to solve ODE in R

Hello. I am a new user of the R package *deSolve*. I was wondering how to
use the ode23tb method in R, just like the ode23tb function in Matlab. I
have posted this question on Stackoverflow
<https://stackoverflow.com/questions/47580477/how-to-convert-matlab-ode23tb-function-to-r>
in detail.

Your kind help would be much appreciated.

Best regards,

Peng