geno.crosstab {qtl}R Documentation

Create table of two-locus genotypes

Description

Create a cross tabulation of the genotypes at a pair of markers.

Usage

geno.crosstab(cross, mname1, mname2, eliminate.zeros=TRUE)

Arguments

cross An object of class cross. See read.cross for details.
mname1 The name of the first marker (as a character string).
mname2 The name of the second marker (as a character string).
eliminate.zeros If TRUE, don't show the rows and columns that have no data.

Value

A matrix containing the number of individuals having each possible pair of genotypes. Genotypes for the first marker are in the rows; genotypes for the second marker are in the columns.

Author(s)

Karl W Broman, kbroman@biostat.wisc.edu

See Also

geno.table, find.marker

Examples

data(hyper)
geno.crosstab(hyper, "D1Mit123", "D1Mit156")
geno.crosstab(hyper, "DXMit22", "DXMit16")
[Package qtl version 1.11-12 Index]