plot_fourier_bases

Implements Bayesian spatio-temporal factor analysis models for multivariate data observed across space and time. The package provides tools for model fitting via Markov chain Monte Carlo (MCMC), spatial and temporal interpolation, and visualization of latent factors and loadings to support inference and exploration of underlying spatio-temporal patterns. Designed for use in environmental, ecological, or public health applications, with support for posterior prediction and uncertainty quantification. Includes functions such as BSTFA() for model fitting and plot_factor() to visualize the latent processes. Functions are based on and extended from methods described in Berrett, et al. (2020) <doi:10.1002/env.2609>.

Candace Berrett

BSTFA

Bayesian Spatio-Temporal Factor Analysis Model

Adam Simpson

plot_fourier_bases function

<dl><dt>coords</dt>
<dd>A matrix of coordinates of observed locations.</dd>
<dt>R</dt>
<dd>Integer indicating the number of bases to compute.</dd>
<dt>fine</dt>
<dd>Number of grid points to include on both axes. Total grid size will be <code>fine^2</code>. Default is <code>100</code>.</dd>
<dt>plot.3d</dt>
<dd>Logical scalar indicating whether to plot the bases. Default is <code>FALSE</code>.</dd>
<dt>freq.lon</dt>
<dd>Numeric value indicating the frequency to use for the Fourier bases in the longitude direction. Default is <code>diff(range(coords[,1]))</code>.</dd>
<dt>freq.lat</dt>
<dd>Numeric value indicating the frequency to use for the Fourier bases in the latitude direction. Default is <code>diff(range(coords[,2]))</code>.</dd>
<dt>par.mfrow</dt>
<dd>If <code>plot.3d=TRUE</code>, how to divide the plotting window. See <code><a href="/link/help(par)?package=BSTFA&version=0.1.0" data-mini-rdoc="BSTFA::help(par)">help(par)</a></code> for more details.</dd></dl>

Arguments

Author

Visualize fourier bases. — plot_fourier_bases

<dl>

<dt>coords</dt>
<dd>A matrix of coordinates of observed locations.</dd>


<dt>R</dt>
<dd>Integer indicating the number of bases to compute.</dd>


<dt>fine</dt>
<dd>Number of grid points to include on both axes. Total grid size will be <code>fine^2</code>. Default is <code>100</code>.</dd>


<dt>plot.3d</dt>
<dd>Logical scalar indicating whether to plot the bases. Default is <code>FALSE</code>.</dd>


<dt>freq.lon</dt>
<dd>Numeric value indicating the frequency to use for the Fourier bases in the longitude direction. Default is <code>diff(range(coords[,1]))</code>.</dd>


<dt>freq.lat</dt>
<dd>Numeric value indicating the frequency to use for the Fourier bases in the latitude direction. Default is <code>diff(range(coords[,2]))</code>.</dd>


<dt>par.mfrow</dt>
<dd>If <code>plot.3d=TRUE</code>, how to divide the plotting window. See <code><a href='https://rdrr.io/r/graphics/par.html'>help(par)</a></code> for more details.</dd>

</dl>

plot_fourier_bases: Visualize fourier bases.

Description

Usage

Value

Arguments

Author