Make it possible to set a simple model's starting values based on guesses for L50 and SR. This is based on discussions with Juan Santos about convergence issues and starting values.
Make it possible to omit SR and use a default as a proportion of L50. What proportion should be used?
Later make it work for more complex models, i.e. with covariates other than length. In those cases with complex models have convergence problems, it might be best to first fit a simple model and use those coefficients as starting values.
Make it possible to set a simple model's starting values based on guesses for L50 and SR. This is based on discussions with Juan Santos about convergence issues and starting values.
Make it possible to omit SR and use a default as a proportion of L50. What proportion should be used?
Later make it work for more complex models, i.e. with covariates other than length. In those cases with complex models have convergence problems, it might be best to first fit a simple model and use those coefficients as starting values.