check_classes | R Documentation |
Checks that an object inherits from one or more classes.
check_classes(
x,
classes = character(0),
exclusive = FALSE,
order = FALSE,
x_name = substitute(x),
error = TRUE
)
x |
The object to check. |
classes |
A character vector of the classes x should inherit from. |
exclusive |
A flag indicating whether other classes are not permitted. |
order |
A flag indicating whether the object classes have to occur in the same order as classes. |
x_name |
A string of the name of the object x. |
error |
A flag indicating whether to throw an informative error or immediately generate an informative message if the check fails. |
The classes of an object can be returned using the class()
function.
An invisible copy of x (if it doesn't throw an error).
check_inherits
check_classes(list())
check_classes(list(), "list")
check_classes(list(), "numeric", error = FALSE)
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