search for: nfert

...], obj[[i]]$tau Thank you for your info Katarina My code in full is: (Note: I'm just using simulated data in this example, and the profile will sometimes work with this) # parameter assignments Nmin <- 0.8852 Nopt1 <- 16.78 gN <- 0.5511 E.nfert1 <- 0.3271 E.nfert2 <- 0.6132 Beta <- 0.8902 Dls <- 0.5378 eta1 <- 0.3791 eta2 <- 0.6332 PopStd <- 90468 beta <- Beta DIs <- Dls MnmN <- Nmin OptN <- Nopt1 # define model function...