fastpolicytree-package

A package for constructing optimal policy trees from
 covariate and reward data. It provides a subset of the
 functionality of the policytree package but constructs the
 trees more quickly (particularly for discrete data) and thus
 allows e.g. deeper trees to be constructed.

internal

Constructs optimal policy trees which provide a rule-based treatment prescription policy.
Input is covariate and reward data, where, typically, the rewards will be doubly robust reward estimates.
This package aims to construct optimal policy trees more quickly than the existing 'policytree' package and
is intended to be used alongside that package.
For more details see Cussens, Hatamyar, Shah and Kreif (2025) <doi:10.48550/arXiv.2506.15435>.

James Cussens

fastpolicytree

Constructs Policy Trees from Covariate and Reward Data

Julia Hatamyar

Vishalie Shah

University of Bristol 

MRC 

fastpolicytree-package function

Maintainer: James Cussens <a href="/link/james.cussens%40bristol.ac.uk?package=fastpolicytree&version=1.0" data-mini-rdoc="fastpolicytree::james.cussens@bristol.ac.uk">james.cussens@bristol.ac.uk</a> (<a href="https://orcid.org/0000-0002-1363-2336">ORCID</a>)
Other contributors:<ul>
<li>Julia Hatamyar <a href="/link/julia.hatamyar%40york.ac.uk?package=fastpolicytree&version=1.0" data-mini-rdoc="fastpolicytree::julia.hatamyar@york.ac.uk">julia.hatamyar@york.ac.uk</a> [contributor]</li>
<li>Vishalie Shah <a href="/link/vishalieshah%40gmail.com?package=fastpolicytree&version=1.0" data-mini-rdoc="fastpolicytree::vishalieshah@gmail.com">vishalieshah@gmail.com</a> [contributor]</li>
<li>University of Bristol [copyright holder]</li>
<li>MRC [funder]</li>
</ul>

Author

fastpolicytree: Constructs Policy Trees from Covariate and Reward Data — fastpolicytree-package

Maintainer: James Cussens <a href='mailto:james.cussens@bristol.ac.uk'>james.cussens@bristol.ac.uk</a> (<a href='https://orcid.org/0000-0002-1363-2336'>ORCID</a>)
Other contributors:<ul>
<li>Julia Hatamyar <a href='mailto:julia.hatamyar@york.ac.uk'>julia.hatamyar@york.ac.uk</a> [contributor]</li>
<li>Vishalie Shah <a href='mailto:vishalieshah@gmail.com'>vishalieshah@gmail.com</a> [contributor]</li>
<li>University of Bristol [copyright holder]</li>
<li>MRC [funder]</li>
</ul>

fastpolicytree-package: fastpolicytree: Constructs Policy Trees from Covariate and Reward Data

Description

Arguments

Author

See Also