exp_sq

For points <code>x</code>, <code>xp</code> and a correlation length <code>theta</code>, gives the exponent
of the squared distance between <code>x</code> and <code>xp</code>, weighted by <code>theta</code> squared.

A set of objects and functions for Bayes Linear emulation and history matching.
Core functionality includes automated training of emulators to data, diagnostic functions
to ensure suitability, and a variety of proposal methods for generating 'waves' of points.
For details on the mathematical background, there are many papers available on the topic
(see references attached to function help files or the below references); for details of
the functions in this package, consult the manual or help files.
Iskauskas, A, et al. (2024) <doi:10.18637/jss.v109.i10>.
Bower, R.G., Goldstein, M., and Vernon, I. (2010) <doi:10.1214/10-BA524>.
Craig, P.S., Goldstein, M., Seheult, A.H., and Smith, J.A. (1997) <doi:10.1007/978-1-4612-2290-3_2>.

Andrew Iskauskas

hmer

History Matching and Emulation Package

TJ McKinley

exp_sq function

<dl><dt>x</dt>
<dd>A data.frame of rows corresponding to position vectors</dd>
<dt>xp</dt>
<dd>A data.frame of rows corresponding to position vectors</dd>
<dt>hp</dt>
<dd>The hyperparameter theta (correlation length)</dd></dl>

Arguments

Exponential squared correlation function — exp_sq

<dl>

<dt>x</dt>
<dd>A data.frame of rows corresponding to position vectors</dd>


<dt>xp</dt>
<dd>A data.frame of rows corresponding to position vectors</dd>


<dt>hp</dt>
<dd>The hyperparameter theta (correlation length)</dd>

</dl>

exp_sq: Exponential squared correlation function

Description

Usage

Value

Arguments

References

Examples