rxSymInvChol

Object for inverse-type calculations. If this is a matrix,
setup the object for inversion by <code><a rd-options="" href="/link/rxSymInvCholCreate?package=RxODE&version=0.9.0-8" data-mini-rdoc="RxODE::rxSymInvCholCreate">rxSymInvCholCreate</a></code> with the default arguments and return
a reactive s3 object. Otherwise, use the inversion object to calculate the requested derivative/inverse.

invObjOrMatrix

Thetas to be used for calculation. If missing (<code>NULL</code>), a
special s3 class is created and returned to access Omega^1
objects as needed and cache them based on the theta that is
used.

theta

The type of object. Currently the following types are
 supported:<ul>
<li><code>cholOmegaInv</code> gives the
 Cholesky decomposition of the Omega Inverse matrix.</li>
<li><code>omegaInv</code> gives the Omega Inverse matrix.</li>
<li><code>d(omegaInv)</code> gives the d(Omega^-1) withe respect to the
 theta parameter specified in <code>thetaNumber</code>.</li>
<li><code>d(D)</code> gives the d(diagonal(Omega^-1)) with respect to
 the theta parameter specified in the <code>thetaNumber</code>
 parameter</li>
</ul>

type

For types <code>d(omegaInv)</code> and <code>d(D)</code>,
the theta number that the derivative is taken against. This
must be positive from 1 to the number of thetas defining the
Omega matrix.

thetaNumber

Facilities for running simulations from ordinary
differential equation (ODE) models, such as pharmacometrics and other
compartmental models.  A compilation manager translates the ODE model
into C, compiles it, and dynamically loads the object code into R for
improved computational efficiency.  An event table object facilitates
the specification of complex dosing regimens (optional) and sampling
schedules.  NB: The use of this package requires both C and
Fortran compilers, for details on their use with R please see
Section 6.3, Appendix A, and Appendix D in the "R Administration and
Installation" manual. Also the code is mostly released under GPL.  The
VODE and LSODA are in the public domain.  The information is available
in the inst/COPYRIGHTS.

Wenping Wang

RxODE

Facilities for Simulating from ODE-Based Models

Matthew L. Fidler

Melissa Hallow

Zufar Mulyukov

Justin Wilkins

Simon Frost

Heng Li

Yu Feng

Alan Hindmarsh

Linda Petzold

Ernst Hairer

Gerhard Wanner

J Colinge

Hadley Wickham

G Grothendieck

Robert Gentleman

Ross Ihaka

R core team 

odepack authors 

rxSymInvChol function

Object for inverse-type calculations. If this is a matrix,
setup the object for inversion by <code><a rd-options='' href='rxSymInvCholCreate'>rxSymInvCholCreate</a></code> with the default arguments and return
a reactive s3 object. Otherwise, use the inversion object to calculate the requested derivative/inverse.

Get Omega^-1 and derivatives — rxSymInvChol

Get Omega^-1 and derivatives

rxSymInvChol: Get Omega^-1 and derivatives

Description

Usage

Arguments

Value