Description Usage Arguments Value Examples
Estimate the probability of no IBD sharing in a pairwise relationship.
1 
sims 
A list of genome simulations, as output by 
ids 
A vector with two ID labels. If NULL (default), these are deduced
from the 
threshold 
A nonnegative number (default:0). Only IBD segments longer than this are included in the computation. 
A list with the following two entries:
zeroprob
: The fraction of sims
in which ids
have no IBD sharing
stErr
: The standard error of zeroprob
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19  ###
# The following example computes the probability of
# no IBD sharing between a pair of fourth cousins.
# We also show how the probability is affected by
# truncation, i.e., ignoring short segments.
###
# Define the pedigree
x = cousinPed(4)
cous = leaves(x)
# Simulate (increase N!)
s = ibdsim(x, N = 10)
# Probability of zero ibd segments. (By default all segs are used)
zeroIBD(s, ids = cous)
# Recompute with positive threshold
zeroIBD(s, ids = cous, threshold = 1)

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