Identification variable for father. Founders' parents should be coded
to NA, or another value specified by missid.
momid
Identification variable for mother. Founders' parents should be coded
to NA, or another value specified by missid.
sex
Gender of individual noted in
‘id’. Either character ("male","female","unknown","terminated")
or numeric (1="male", 2="female", 3="unknown", 4="terminated")
data is allowed. For character data the string may be truncated,
and of arbitrary case.
affected
A variable indicating affection status. A multi-column matrix
can be used to give the status with respect to multiple traits.
Logical, factor, and integer types are converted to 0/1 representing
unaffected and affected, respectively. NAs are considered missing.
status
Status (0="censored", 1="dead")
relation
A matrix with 3 columns (id1, id2, code) specifying special relationship
between pairs of individuals. Codes: 1=Monozygotic
twin, 2=Dizygotic twin, 3=Twin of unknown zygosity, 4=Spouse.
(The last is necessary in order to place a marriage with no children
into the plot.) Note for tuples of >= 3 with a mixture of zygosities,
the plotting is limited to showing pairwise zygosity of adjacent subjects,
so it is only necessary to specify the pairwise zygosity, in the order
the subjects are given or appear on the plot.
famid
An optional vector of family identifiers. If it is present the
result will contain individual pedigrees for each family in the set,
which can be extacted using subscripts.
Individuals need to have a unique id within family.
missid
The founders are those with no father or mother in the pedigree. The
dadid and momid values for these subjects will either be
NA or the value of this variable. The default for missid is 0
if the id variable is numeric, and "" (the empty string)
otherwise.
Value
An object of class pedigree or pedigreeList
Containing the following items:
famid id findex mindex sex affected status relation