I'm looking for a R Software package to run a Transversion model (TVM + I + G) and Transition model (TIM2 + I + G), but I can't find if there is such a package to do this. Is there a package available to run these models?
the phangorn package can estimate these models. The functions you want to look at are called pml and optim. pml . The r-sig-phylo site is probably better for asking questions.