Random marker map — random_map • hybridclock

Places markers at random positions on chromosomes, for simulating linkage when no genetic map is available. Use the species' chromosome number and, if known, its map length; otherwise give build_reference() a range so that the uncertainty is part of the reference.

Usage

random_map(n_markers, chromosomes, length_cM)

Arguments

n_markers: Number of markers.
chromosomes: Number of chromosomes.
length_cM: Total map length in centimorgans, shared equally among chromosomes.

Value

A data.frame with chromosome and position (cM), sorted.

Examples

head(random_map(500, chromosomes = 11, length_cM = 1500))
#>    chromosome  position
#> 15          1  5.816880
#> 9           1  6.923341
#> 5           1  7.035726
#> 14          1 11.781188
#> 24          1 16.564295
#> 29          1 17.531547