A list of parameter names. For simple models, only one list-element,
conditional, is returned.
Arguments
x
A fitted model.
flatten
Logical, if TRUE, the values are returned
as character vector, not as list. Duplicated values are removed.
merge_parameters
Logical, if TRUE and x has multiple
columns for parameter names (like emmGrid objects may have), these
are merged into a single parameter column, with parameters names and values
as values.