Description
Routines to handle family data with a pedigree object. The
initial purpose was to create correlation structures that describe
family relationships such as kinship and identity-by-descent, which
can be used to model family data in mixed effects models, such as in the
coxme function. Also includes a tool for pedigree drawing which is
focused on producing compact layouts without intervention. Recent additions
include utilities to trim the pedigree object with various criteria, and
kinship for the X chromosome