quad.form

quad.form.inv

quad.3form

quad.3form.inv

quad.tform

quad.3tform

quad.tform.inv

quad.diag

quad.tdiag

quad.3diag

quad.3tdiag

quad3.form

cprod

tcprod

Functionality for evaluating quadratic forms. 
If you want to use these functions, import them from the
 <a href="https://CRAN.R-project.org/package=quadform">quadform</a> package, which has more extensive functionality,
 and is maintained.
The <a href="https://CRAN.R-project.org/package=quadform">quadform</a> package defines <code>quad3.form()</code> et seq, not
 <code>quad.3form()</code>, which was the old name. Function
 <code>quad.3form()</code> will soon be deprecated.

array

Allows one to estimate the output of a computer program,
as a function of the input parameters, without actually running it.
The computer program is assumed to be a Gaussian process, whose
parameters are estimated using Bayesian techniques that give a PDF of
expected program output.  This PDF is conditional on a training set
of runs, each consisting of a point in parameter space and the model
output at that point.  The emphasis is on complex codes that take
weeks or months to run, and that have a large number of undetermined
input parameters; many climate prediction models fall into this
class.  The emulator essentially determines Bayesian posterior
estimates of the PDF of the output of a model, conditioned on results
from previous runs and a user-specified prior linear model.  The
package includes functionality to evaluate quadratic forms
efficiently.

Robin K S Hankin

emulator

Bayesian Emulation of Computer Programs

quad.form function

<dl> <dt>M</dt>
<dd>Square matrix of size \(n\times n\)</dd> <dt>x, y</dt>
<dd>Matrix of size \(n\times p\), or vector of length \(n\)</dd> <dt>left, right</dt>
<dd>In function <code>quad3.form()</code>, matrices with
 \(n\) rows and arbitrary number of columns. But see the
 <code>quadform</code> package for details.</dd></dl>

Arguments

Author

Functionality for evaluating quadratic forms. 
If you want to use these functions, import them from the
 <a href='https://CRAN.R-project.org/package=quadform'>quadform</a> package, which has more extensive functionality,
 and is maintained.
The <a href='https://CRAN.R-project.org/package=quadform'>quadform</a> package defines <code>quad3.form()</code> et seq, not
 <code>quad.3form()</code>, which was the old name. Function
 <code>quad.3form()</code> will soon be deprecated.

Evaluate a quadratic form efficiently — quad.form

<dl>

 <dt>M</dt>
<dd>Square matrix of size \(n\times n\)</dd>

 <dt>x, y</dt>
<dd>Matrix of size \(n\times p\), or vector of length \(n\)</dd>

 <dt>left, right</dt>
<dd>In function <code>quad3.form()</code>, matrices with
 \(n\) rows and arbitrary number of columns. But see the
 <code>quadform</code> package for details.</dd>

</dl>

Evaluate a quadratic form efficiently

quad.form: Evaluate a quadratic form efficiently

Description

Usage

Arguments

Author

Details

See Also

Examples