Causal Trees
A regression tree whose leaves estimate treatment effects. The criterion that makes the splits, the sample split called honesty, and what it does not fix.
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Decision Trees
Five bootstrap resamples produced trees whose root thresholds ran from -0.4341 to +0.1348 and which agreed with each other on 0.9125 to 0.9305 of rows.
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Decision Tree Splits, Pruning, and Instability
Readable, scale-free, and unstable enough that one tree is rarely the answer.