qtl (version 1.44-9)

convert.map: Change map function for a genetic map

Description

Convert a genetic map from using one map function to another.

Usage

# S3 method for map
convert(object, old.map.function=c("haldane", "kosambi", "c-f", "morgan"),
         new.map.function=c("haldane", "kosambi", "c-f", "morgan"), …)

Arguments

object

A genetic map object, of class "map": A list whose components are vectors of marker locations.

old.map.function

The map function used in forming the map in object.

new.map.function

The new map function to be used.

…

Ignored at this point.

Value

The same as the input, but with inter-marker distances changed to reflect a different map function.

Details

The location of the first marker on each chromosome is left unchanged. Inter-marker distances are converted to recombination fractions with the inverse of the old.map.function, and then back to distances with the new.map.function.

See Also

est.map, replace.map

Examples

# NOT RUN {
data(listeria)
map <- pull.map(listeria)
map <- convert(map, "haldane", "kosambi")
listeria <- replace.map(listeria, map)
# }