paramlink (version 1.1-6)

is.linkdat: Is an object a linkdat object?

Description

Functions for checking whether an object is a linkdat object, a singleton or a list of such.

Usage

is.linkdat(x)
is.singleton(x)
is.linkdat.list(x)

Value

For is.linkdat: TRUE if x is a linkdat (or singleton) object, and FALSE otherwise.
For is.singleton: TRUE if x

is a singleton object, and FALSE otherwise.
For is.linkdat.list: TRUE if x is a list of linkdat/singleton objects.

Arguments

x

Any R object.

Details

Note that the singleton class inherits from linkdat, so if x is a singleton, is.linkdat(x) returns TRUE.

See Also

linkdat

Examples

x1 = nuclearPed(1)
x2 = singleton(1)
stopifnot(is.linkdat(x1), !is.singleton(x1),
          is.linkdat(x2), is.singleton(x2),
          is.linkdat.list(list(x1,x2)))