Pseudomarkers used to interpolate genotype data across study.

This is loaded into R as both a genetic map (named ‘gmap’ by default) and a physical map (named ‘pmap’ by default). Each map is a list of 20 vectors corresponding to chromosomes 1–19 and the X chromosome, respectively. Values in each vector correspond to the genetic position in centimorgans (‘gmap’) or physical position in megabases (‘pmap’). The names of each vector correspond to the name of the pseudomarker using the naming convention “chromosome_position”, where position is the position of the pseudomarker in bases. (RDATA)