read.pedfile.map: function to read the accompanying map file of a LINKAGE ped file
Description
This function read the accompanying map file of a LINKAGE ped file,
for the SNP names, position and chromosome.
Usage
read.pedfile.map(file)
Value
A data frame with columns "snp.names", "position", "chromosome".
Details
One such map file is the one accompanying the sample ped file of
Haploview.