Get the number of parameters of the main xsdm model given the number of environmental variables to be considered

Usage

num_par(p)

Arguments

p: A positive integer representing the number of environmental variables to be used in the xsdm model, i.e., dim(env_dat)[3] for the env_dat argument of the loglik_math function

Value

An integer with the number of parameters

Details

For instance, in the `p=1` case, the xsdm model parameters are `mu`, `sigltil`, and `sigrtil` (which are scalars in the `p=1` case); `ctil`, and `pd` (which are scalars for any value `p`). That makes 5 parameters, so this function returns 5. In the `p=2` case, the parameters are `mu`, `sigltil`, and `sigrtil` (each of which is now a length-2 vector); `ctil`, and `pd` (again scalars); and the single parameter pertaining to `o_mat`; for a total of 9.

Examples

num_par(2)
#> [1] 9