writeModel

Convert R function to a WinBUGS model file. BUGS models follow
closely S syntax. It is therefore possible to write most BUGS models as R
functions.
As a difference, BUGS syntax allows truncation specification like this:
<code>dnorm(...) I(...)</code> but this is illegal in R. To overcome this
incompatibility, use dummy operator <code>%_%</code> before <code>I(...)</code>:
<code>dnorm(...) %_% I(...)</code>. The dummy operator <code>%_%</code> will be
removed before the BUGS code is saved.
In S-PLUS, a warning is generated when the model function is defined if the
last statement in the model is an assignment. To avoid this warning, add the
line <code><a href="/link/invisible()?package=crmPack&version=1.0.6" data-mini-rdoc="crmPack::invisible()">invisible()</a></code> to the end of the model definition. This line will be
removed before the BUGS code is saved.

Implements a wide range of model-based dose
escalation designs, ranging from classical and modern continual
reassessment methods (CRMs) based on dose-limiting toxicity endpoints to
dual-endpoint designs taking into account a biomarker/efficacy outcome. The
focus is on Bayesian inference, making it very easy to setup a new design
with its own JAGS code. However, it is also possible to implement 3+3
designs for comparison or models with non-Bayesian estimation. The whole
package is written in a modular form in the S4 class system, making it very
flexible for adaptation to new models, escalation or stopping rules.

Daniel Sabanes Bove

crmPack

Object-Oriented Implementation of CRM Designs

Wai Yin Yeung

Giuseppe Palermo

Thomas Jaki

writeModel function

<dl><dt>model</dt>
<dd>R function containing the BUGS model in the BUGS
model language, for minor differences see Section Details.</dd>
<dt>con</dt>
<dd>passed to <code><a href="/link/writeLines?package=crmPack&version=1.0.6" data-mini-rdoc="crmPack::writeLines">writeLines</a></code> which actually writes the
model file</dd>
<dt>digits</dt>
<dd>number of significant digits used for WinBUGS
input, see <code><a href="/link/formatC?package=crmPack&version=1.0.6" data-mini-rdoc="crmPack::formatC">formatC</a></code></dd></dl>

Arguments

original idea by Jouni Kerman, modified by Uwe Ligges,
Daniel Sabanes Bove removed S-PLUS part

Author

Convert R function to a WinBUGS model file. BUGS models follow
closely S syntax. It is therefore possible to write most BUGS models as R
functions.
As a difference, BUGS syntax allows truncation specification like this:
<code>dnorm(...) I(...)</code> but this is illegal in R. To overcome this
incompatibility, use dummy operator <code>%_%</code> before <code>I(...)</code>:
<code>dnorm(...) %_% I(...)</code>. The dummy operator <code>%_%</code> will be
removed before the BUGS code is saved.
In S-PLUS, a warning is generated when the model function is defined if the
last statement in the model is an assignment. To avoid this warning, add the
line <code><a href='https://rdrr.io/r/base/invisible.html'>invisible()</a></code> to the end of the model definition. This line will be
removed before the BUGS code is saved.

Creating a WinBUGS model file — writeModel

<dl>

<dt>model</dt>
<dd>R function containing the BUGS model in the BUGS
model language, for minor differences see Section Details.</dd>


<dt>con</dt>
<dd>passed to <code><a href='https://rdrr.io/r/base/writeLines.html'>writeLines</a></code> which actually writes the
model file</dd>


<dt>digits</dt>
<dd>number of significant digits used for WinBUGS
input, see <code><a href='https://rdrr.io/r/base/formatc.html'>formatC</a></code></dd>

</dl>

writeModel: Creating a WinBUGS model file

Description

Usage

Value

Arguments

Author