Pedigree file:
Only the first three columns of each line in the file are read. These
three columns are: 

id parent1 parent2.

Each field must be separated by white space (space or tab). Additional
information following the first three columns may be present in the
line, but it will be ignored. The pedigree must be organized so that
parents must always appear before their children.


Genotype file:

The file consists of a series of columns with the first column being
the id's that are genotyped and successive columns the genotypes at
the various markers. The first line must be a white space delimited
list with the first field in the list being a label for the id column
(it could be any word, e.g "id", as long as there is some word). All
the other fields in the first line are the names of the markers. All
the other rows must have the id first followed by the genotypes at
each of the markers. White space must separate all fields (including
alleles of a genotype). Genotypes must have alleles numbered from 1 to
n, where n is the number of alleles at the marker. Unknown alleles
must use the number 0. Partial genotypes (e.g. 0 3) are allowed. An
example genotype file:

id	marker1	m2
402	1 1	2 1
404	0 0	3 4
405	1 0	2 2

Individuals who are in the genotype file but not the pedigree file are
ignored. The order of individuals does not matter.


Frequency file:

For each marker listed in the genotype file, the frequency file must
contain a pair of rows. The first row of the pair must have at least
two fields separated by white space. The first field is the marker
name and the second field the number of alleles at the marker. Any
additional fields on this row are ignored. The second row is a white
space separated list of allele frequencies. Only as many frequencies
are read as specified by the number of alleles in the first row. If
these allele frequencies do not add to approximately 1.0, a warning is
issued and analysis continues. Currently, the marker names in the
frequency file are not cross referenced with the marker names in the
genotype file, so the markers must occur in the order in which they
appear in the genotype file. An example frequency file:

marker1 2
0.9 0.1
m2	5
0.2	0.197	0.201	0.21	0.19


Sample file:

A list of id's for which the statistic will be computed. If each line
in the file has only one id then all possible pairs will be formed
from the list and the statistic computed. If each line has a pair of
id's, then the statistic will be computed only using the pairs listed
in the file.


Identity coefficient file:

Each line consists of a pair of white space separated id's followed by
a white space separated list of condensed identity coefficients. The
coefficients should appear in the order of Delta1,..., Delta9. The
output from the identity coefficient computing program can be used
directly.