R: Check whether the argument of a lcMethod has a defined value.

isArgDefined

R Documentation

Check whether the argument of a lcMethod has a defined value.

Description

Determines whether the associated argument value is defined. If the argument value is of type language, the argument is evaluated to see if it can be resolved within its environment.

Usage

isArgDefined(object, name, envir = environment(object))

Arguments

`object`	The `lcMethod` object.
`name`	The name of the argument, as `character`.
`envir`	The `environment` to evaluate the arguments in. If `NULL`, the argument is not evaluated.