findUnavailable: Find or trim unavailable subjects in a pedigree

In kinship2: Pedigree Functions

Find or trim unavailable subjects in a pedigree

Description

Find the ID of subjects in a pedigree iteratively, as anyone who is not available and does not have an available descendant by successively removing unavailable terminal nodes. pedigree.trim carries out the removal of the subjects identified by findUnavailable.

Usage

findUnavailable(ped, avail)
pedigree.trim(removeID, ped)

Arguments

ped	A pedigree object with an id, findex, mindex, sex, plus other optional items
avail	Logical vector of availability status (e.g., genotyped) 0/1 or TRUE/FALSE
removeID	vector of subject ids of persons to trim from a pedigree

Details

Originally written as pedTrim by Steve Iturria, modified by Dan Schaid 2007, and now split into the two separate functions: findUnavailable(), and pedigree.trim() to do the tasks separately. findUnavailable() calls excludeStrayMarryin to find stray available marry-ins who are isolated after trimming their unavailable offspring, and excludeUnavailFounders. If the subject ids are character, make sure none of the characters in the ids is a colon (":"), which is a special character used to concatenate and split subjects within the utlity.

Value

findUnavailable returns a vector of subject ids for who can be removed. pedigree.trim returns a trimmed pedigree object.

Side Effects

relation matrix from pedigree.trim is trimmed of any special relations that include the subjects to trim.

See Also

pedigree.shrink,

kinship2 documentation built on May 29, 2024, 11:14 a.m.