policytree

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Can policy_tree handle missing values in covariate space (X)?

1

I am using policytree, version 1.2.0, and I am specifically trying to implement policy learning on the doubly robust reward estimates derived from an honest causal forest (GRF package). While...

njawadekar

Including variable labels in the policy tree visualization

1

Based on existing [documentation](https://cran.r-project.org/web/packages/policytree/policytree.pdf), I understand that when outputting a policy tree object into a visualization using the **plot.policy_tree** function, one can add the _leaf.labels_ argument to ensure that the...

njawadekar

Suggestion: keep track of utility of assigning all units each treatment outside of "level_one_learning"

32

Hi All, Thanks for writing such a fantastic and well-documented package. I've been working using the package the past few weeks, and I think I might have come across a...

beniaminogreen

Policy tree - double robust scores and rewards

3

In layman's terms, can you please explain the process through which the policy_tree function inputs the double_robust_scores (i.e., the Gamma.matrix from causal forest that is interpreted as rewards), and uses...

njawadekar