llsrmRho

Calculation of the SRM log-likelihood over a grid of rho-values

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

llsrmRho function

<dl><dt>Y</dt>
<dd>sociomatrix assumed to follow a mean-zero SRM distribution</dd>
<dt>Sab</dt>
<dd>covariance matrix of additive effects</dd>
<dt>rhos</dt>
<dd>vector of rho-values at which to calculate the log-likelihood</dd>
<dt>s2</dt>
<dd>current value of s2</dd></dl>

Arguments

Author

SRM log likelihood evaluated on a grid of rho-values — llsrmRho

<dl>

<dt>Y</dt>
<dd>sociomatrix assumed to follow a mean-zero SRM distribution</dd>


<dt>Sab</dt>
<dd>covariance matrix of additive effects</dd>


<dt>rhos</dt>
<dd>vector of rho-values at which to calculate the log-likelihood</dd>


<dt>s2</dt>
<dd>current value of s2</dd>

</dl>

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llsrmRho: SRM log likelihood evaluated on a grid of rho-values

Description

Usage

Value

Arguments

Author