Validate an exametrika object and return the matched model class

Internal validation used by all plot functions. The object must inherit from "exametrika" and carry at least one of the model classes in valid_classes. Using %in% on class(data) against the candidate set (and not the other way around) keeps the check robust when the parent package adds extra classes to its outputs.

Usage

.validate_exametrika(data, valid_classes)

Arguments

data

Object to validate.

valid_classes

Character vector of acceptable model classes.

Value

The first matched model class (character scalar), invisibly usable for dispatching on the model type.