qtl (version 1.44-9)

convert2sa: Convert a sex-specific map to a sex-averaged one

Description

Convert a sex-specific map to a sex-averaged one, assuming that the female and male maps are actually the same (that is, that the map was estimated assuming a common recombination rate in females and males).

Usage

convert2sa(map, tol=1e-4)

Arguments

map

A map object with sex-specific locations (but assuming that the female and male maps are the same), as output by the function est.map for a 4-way cross, with argument sex.sp=FALSE.

tol

Tolerance value for inspecting the differences between the female and male maps; if they differ by more than this tolerance, a warning is issued.

Value

A map object, with sex-averaged distances.

Details

We pull out just the female marker locations, and give a warning if there are large differences between the female and male maps.

See Also

est.map, plotMap

Examples

# NOT RUN {
data(fake.4way)
# }
# NOT RUN {
fake.4way <- subset(fake.4way, chr="-X")
# }
# NOT RUN {
nm <- est.map(fake.4way, sex.sp=FALSE)
plot(convert2sa(nm))
# }