convertPos: Conversion of genetic map positions
In ibdsim2: Simulation of Chromosomal Regions Shared by Family Members

Description Usage Arguments Value Examples

Convert between physical position (in megabases) and genetic position (centiMorgan) given a chromosome map. Linear extrapolation is used to convert positions between map points.

1	convertPos(Mb = NULL, cM = NULL, map)

`Mb`	A vector of physical positions (in Mb), or NULL.
`cM`	A vector of genetic positions (in cM), or NULL.
`map`	A data frame with columns `Mb` and `cM`.

A vector of the same length as the input.

# Chromosome 1 of the built-in recombination map
map = loadMap(chrom = 1)[[1]]
head(map$male)

# Conversion Mb -> cM
phys = 1:5
gen = convertPos(Mb = phys, map = map$male)
gen

# Convert back (note the first position, which was outside of map)
convertPos(cM = gen, map = map$male)