is.ped {pedtools}

Is an object a ped object?

Description

Functions for checking whether an object is a ped() object, a singleton() or a list of such.

Usage

is.ped(x)

is.singleton(x)

is.pedList(x)

Arguments

x

Any R object.

Details

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

Value

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

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

For is.pedList(): TRUE if x is a list of ped and/or singleton objects, otherwise FALSE.

Author(s)

Magnus Dehli Vigeland

See Also

ped()

Examples

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