TMBAIC

<code>TMBAIC</code> calculates AIC for a given model fit

Applies dynamic structural equation models to time-series data
with generic and simplified specification for simultaneous and lagged
effects. Methods are described in Thorson et al. (2024)
"Dynamic structural equation models synthesize ecosystem dynamics
constrained by ecological mechanisms."

James Thorson

dsem

Fit Dynamic Structural Equation Models

Maurice Goodman

Wouter van der Bijl

TMBAIC function

<dl><dt>opt</dt>
<dd>the output from <code>nlminb</code> or <code>optim</code></dd>
<dt>k</dt>
<dd>the penalty on additional fixed effects (default=2, for AIC)</dd>
<dt>n</dt>
<dd>the sample size, for use in AICc calculation (default=Inf, for which AICc=AIC)</dd></dl>

Arguments

Calculate marginal AIC for a fitted model — TMBAIC

<dl>

<dt>opt</dt>
<dd>the output from <code>nlminb</code> or <code>optim</code></dd>


<dt>k</dt>
<dd>the penalty on additional fixed effects (default=2, for AIC)</dd>


<dt>n</dt>
<dd>the sample size, for use in AICc calculation (default=Inf, for which AICc=AIC)</dd>

</dl>

State of Data and AI Literacy Report 2025

TMBAIC: Calculate marginal AIC for a fitted model

Description

Usage

Value

Arguments