Converts priors defined in a `data.frame`

into a list
format for use by stan. In addition it adds "_p" to all
variable names in order too allow them to be distinguished from
their standard usage within modelling code.

## Arguments

- priors
A

`data.frame`

with the following variables:`variable`

,`mean`

,`sd`

describing normal priors. Priors in the appropriate format are returned by`enw_reference()`

as well as by other similar model specification functions.

## Value

A named list with each entry specifying a prior as a length two vector (specifying the mean and standard deviation of the prior).

## See also

Functions used to help convert models into the format required for stan
`enw_formula_as_data_list()`

,
`enw_get_cache()`

,
`enw_model()`

,
`enw_pathfinder()`

,
`enw_replace_priors()`

,
`enw_sample()`

,
`enw_set_cache()`

,
`enw_stan_to_r()`

,
`enw_unset_cache()`

,
`remove_profiling()`

,
`write_stan_files_no_profile()`

## Examples

```
priors <- data.frame(variable = "x", mean = 1, sd = 2)
enw_priors_as_data_list(priors)
#> $x_p
#> [,1]
#> mean 1
#> sd 2
#>
```