make_eof_ram

<code>make_eof_ram</code> converts SEM arrow notation to <code>ram</code> describing SEM parameters

Fits a wide variety of multivariate spatio-temporal models
with simultaneous and lagged interactions among variables (including
vector autoregressive spatio-temporal ('VAST') dynamics)
for areal, continuous, or network spatial domains.
It includes time-variable, space-variable, and space-time-variable
interactions using dynamic structural equation models ('DSEM')
as expressive interface, and the 'mgcv' package to specify splines
via the formula interface. See Thorson et al. (2024)
<doi:10.48550/arXiv.2401.10193> for more details.

James Thorson

tinyVAST

Multivariate Spatio-Temporal Models using Structural Equations

make_eof_ram function

<dl><dt>times</dt>
<dd>A character vector listing the set of times in order</dd>
<dt>variables</dt>
<dd>A character vector listing the set of variables</dd>
<dt>n_eof</dt>
<dd>Number of EOF modes of variability to estimate</dd>
<dt>remove_na</dt>
<dd>Boolean indicating whether to remove NA values from RAM (default) or not.
<code>remove_NA=FALSE</code> might be useful for exploration and diagnostics for
advanced users</dd>
<dt>standard_deviations</dt>
<dd>One of <code>"equal"</code>, <code>"unequal"</code>, or a numeric vector
indicating fixed values.</dd></dl>

Arguments

Make a RAM (Reticular Action Model) — make_eof_ram

<dl>

<dt>times</dt>
<dd>A character vector listing the set of times in order</dd>


<dt>variables</dt>
<dd>A character vector listing the set of variables</dd>


<dt>n_eof</dt>
<dd>Number of EOF modes of variability to estimate</dd>


<dt>remove_na</dt>
<dd>Boolean indicating whether to remove NA values from RAM (default) or not.
<code>remove_NA=FALSE</code> might be useful for exploration and diagnostics for
advanced users</dd>


<dt>standard_deviations</dt>
<dd>One of <code>"equal"</code>, <code>"unequal"</code>, or a numeric vector
indicating fixed values.</dd>

</dl>

make_eof_ram: Make a RAM (Reticular Action Model)

Description

Usage

Value

Arguments

Examples