qtl (version 1.38-4)

nchr: Determine the number of chromosomes

Description

Determine the number of chromosomes in a cross or map object.

Usage

nchr(object)

Arguments

object

An object of class cross (see read.cross for details) or map (see sim.map for details).

Value

• The number of chromosomes in the input.

See Also

read.cross, plot.cross, summary.cross, nind, totmar, nmar, nphe

Examples

data(fake.f2)
nchr(fake.f2)
map <- pull.map(fake.f2)
nchr(map)