dscrit

Calculates the value of the Ds-Optimality criterion function, which follows the expression:
$$\phi_{Ds} = \left(\frac{|M_{22}|}{|M|}\right)^{1/s}$$

Calculates D-, Ds-, A-, I- and L-optimal designs for non-linear models, via an implementation of the cocktail algorithm (Yu, 2011, <doi:10.1007/s11222-010-9183-2>). Compares designs via their efficiency, and augments any design with a controlled efficiency. An efficient rounding function has been provided to transform approximate designs to exact designs.

Carlos de la Calle-Arroyo

optedr

Calculating Optimal and D-Augmented Designs

Jesús López-Fidalgo

Licesio J. Rodríguez-Aragón

dscrit function

<dl><dt>M</dt>
<dd>information matrix for which the criterion value wants to be calculated.</dd>
<dt>par_int</dt>
<dd>numeric vector with the index of the parameters of interest of the model.</dd></dl>

Arguments

Criterion function for Ds-Optimality — dscrit

<dl>

<dt>M</dt>
<dd>information matrix for which the criterion value wants to be calculated.</dd>


<dt>par_int</dt>
<dd>numeric vector with the index of the parameters of interest of the model.</dd>

</dl>

dscrit: Criterion function for Ds-Optimality

Description

Usage

Value

Arguments