chr_lengths: Calculate chromosome lengths
Description
Calculate chromosome lengths for a map object
Usage
chr_lengths(map, collapse_to_AX = FALSE)
Value
A vector of chromosome lengths. If
collapse_to_AX=TRUE
, the result is a vector of length 2
(autosomal and X chromosome lengths).
Arguments
- map
A list of vectors, each specifying locations of the markers.
- collapse_to_AX
If TRUE, collapse to the total lengths of the
autosomes and X chromosome.
Details
We take diff(range(v))
for each vector, v
.