saving Rashomon set as JSON?

[lin-v-gan]

Thank you so much for the awesome tool!

How exactly do I generate the JSON file? I don't think the example notebook covers this.

Thanks!

[xiaohk]

Hello @gllg4009, good catch! We will add a function to directly export a JSON file from TreeFARMS.

https://github.com/ubc-systopia/treeFarms/blob/d6d1363d1d4a4cf4bc768c98a481b6b8f484a153/treefarms/model/treefarms.py#L149-L172

Right now, you can manually export the JSON using the code below:

# Get the rashomon in a trie structure
trie = model.model_set.to_trie()
df = model.dataset

# Convert the trie to decision paths
feature_names = df.columns
decision_paths = timbertrek.transform_trie_to_rules(
    trie,
    df,
    feature_names=feature_names,
)

# Save the decision paths in a JSON file
dump(decision_paths, open('./my-decision-paths.json', 'w'))

You then can drag the JSON file into https://poloclub.github.io/timbertrek/ to visualize it :)

[lin-v-gan]

Lovely, thanks @xiaohk !