sheep

Number of dominance encounters between 28 female bighorn sheep. 
Cell (i,j) records the number of times sheep i dominated sheep j. 
From Hass (1991).

Analysis of dyadic network and relational data using additive and
multiplicative effects (AME) models. The basic model includes
regression terms, the covariance structure of the social relations model
(Warner, Kenny and Stoto (1979) <DOI:10.1037/0022-3514.37.10.1742>,
Wong (1982) <DOI:10.2307/2287296>), and multiplicative factor
models (Hoff(2009) <DOI:10.1007/s10588-008-9040-4>).
Several different link functions accommodate different
relational data structures, including binary/network data, normal
relational data, zero-inflated positive outcomes using a tobit model, ordinal relational data and data from
fixed-rank nomination schemes. Several of these link functions are
discussed in Hoff, Fosdick, Volfovsky and Stovel (2013)
<DOI:10.1017/nws.2013.17>. Development of this
software was supported in part by NIH grant R01HD067509.

Peter Hoff

amen

Additive and Multiplicative Effects Models for Networks and
Relational Data

Bailey Fosdick

Alex Volfovsky

Yanjun He

sheep function

A list consisting of the following:<ul>
<li><code>dom</code>: a directed socioarray recording the number of 
dominance encounters.</li>
<li><code>age</code>: the age of each sheep in years.</li>
</ul>

sheep: Sheep dominance data

Description

Arguments

Format