nMarkers: The number of markers attached to a pedigree
Description
The number of markers attached to a pedigree
Usage
nMarkers(x)
hasMarkers(x)
Arguments
x
A ped object or a list of such (see Value).
Value
The function nMarkers returns the number of marker objects attached
to x. If x is a list of pedigrees, an error is raised unless all of
them have the same number of markers.
The function hasMarkers returns TRUE if nMarkers(x) > 0.