stages_bj

Join stages from more complex to simpler models
using a distance and a threshold value.

Creates and fits staged event tree probability models,
which are probabilistic graphical models capable of representing
asymmetric conditional independence statements
for categorical variables.
Includes functions to create, plot and fit staged
event trees from data, as well as many efficient structure
learning algorithms.
References:
Carli F, Leonelli M, Riccomagno E, Varando G (2022).
<doi: 10.18637/jss.v102.i06>.
Collazo R. A., Görgen C. and Smith J. Q.
(2018, ISBN:9781498729604).
Görgen C., Bigatti A., Riccomagno E. and Smith J. Q. (2018)
<arXiv:1705.09457>.
Thwaites P. A., Smith, J. Q. (2017) <arXiv:1510.00186>.
Barclay L. M., Hutton J. L. and Smith J. Q. (2013)
<doi:10.1016/j.ijar.2013.05.006>.
Smith J. Q. and Anderson P. E. (2008)
<doi:10.1016/j.artint.2007.05.004>.

Gherardo Varando

stagedtrees

Staged Event Trees

Federico Carli

Manuele Leonelli

Eva Riccomagno

stages_bj function

<dl><dt>object</dt>
<dd>an object of class <code>sevt</code> with fitted probabilities and
data, as returned by <code>full</code> or <code>sevt_fit</code>.</dd>
<dt>distance</dt>
<dd>character, see details.</dd>
<dt>thr</dt>
<dd>the threshold for joining stages</dd>
<dt>scope</dt>
<dd>names of variables that should be considered
for the optimization.</dd>
<dt>ignore</dt>
<dd>vector of stages which will be ignored and left untouched,
by default the name of the unobserved stages stored in
<code>object$name_unobserved</code>.</dd>
<dt>trace</dt>
<dd>if &gt;0 increasingly amount of info
is printed (via <code>message</code>).</dd></dl>

Arguments

Backward joining of stages — stages_bj

<dl>

<dt>object</dt>
<dd>an object of class <code>sevt</code> with fitted probabilities and
data, as returned by <code>full</code> or <code>sevt_fit</code>.</dd>


<dt>distance</dt>
<dd>character, see details.</dd>


<dt>thr</dt>
<dd>the threshold for joining stages</dd>


<dt>scope</dt>
<dd>names of variables that should be considered
for the optimization.</dd>


<dt>ignore</dt>
<dd>vector of stages which will be ignored and left untouched,
by default the name of the unobserved stages stored in
<code>object$name_unobserved</code>.</dd>


<dt>trace</dt>
<dd>if &gt;0 increasingly amount of info
is printed (via <code>message</code>).</dd>

</dl>

stages_bj: Backward joining of stages

Description

Usage

Value

Arguments

Details

Examples