Avoid repeating computations and dealing with constant parameters in Julia, optim...

R programmable fixing of parameters in `optim`...

R defining a function using optim...

Problem specifying arguments when using "optim" for MLE...

Use OPTIM() to MUTATE an additional column to an existing dataframe or tibble...

Adding model-fitting constraints to a subset of parameters using FME::modFit or optim...

Optimization of piecewise functions in Julia...

Optim Julia parameter meaning...