Returns the number of sites/regions for a given RnBSet object
Usage
"nsites"(object, type = "sites")
Arguments
object
RnBSet of interest.
type
character singleton. If this is set to "sites" (default), the number of sites is returned.
Otherwise, this should be one of region types for for which the number of regions is returned.
Value
integer stating the number of sites/regions. NA if the regions have not been summarized yet.