A helper function to get concentration scalings
conc_scale_use(use_scale_conc, obj)A named list with elements `dose_norm` and `log10_trans`, both logical.
The `use_scale_conc` argument (see Details)
A [pk()] object
In methods applied to fitted [pk()] objects that also accept `newdata` arguments, the user may specify whether to use the concentration scaling of the fitted [pk()] object, or use a different concentration scaling. This is done by specifying an argument `use_scale_conc`, which may be `TRUE` (to use the scaling from the fitted object), `FALSE` (to use no scaling), or may be a named list with elements `dose_norm` and `log10_trans` to specify scaling/transformation directly. This helper function parses the `use_scale_conc` argument.