make.location.prior {bqtl}  R Documentation 
Uses the map distances as a means of assigning a prior for chromosomal location. Basically, this function attempts to assign equal weight according to the spacing or markers and 'virtual' markers.
make.location.prior( x, add.2.end=0, normalize=TRUE )
x 

add.2.end 
How many Morgans to extend the first and last interval on each chromosome 
normalize 
If TRUE, let the result sum to 1.0 
A vector of length(x)
whose sum is one, if normalize==TRUE
Charles C. Berry, cberry@ucsd.edu