How to send max tree depth to bambi?

Questions v5
1

Hi, I have a Bambi model which hits the max treedepth. But when I try to put max_treedepth into the fit() command, it says I have given an unused step method.

Here is some sample code from Bambi 0.9.1:

import bambi
import pandas as pd
data =pd.DataFrame({"x": [1, 2, 3, 4, 5], "y": [9, 3, 4, 3, 4 ]})
model = bambi.Model("y~x", data)
results = model.fit(max_treedepth = 12)

This returns “ValueError: Unused step method arguments: {‘max_treedepth’}”

2

Increasing max_treedepth is usually a pretty inefficient fix and most often does not fix anything. Did you try using more informative prior? It usually more effective to fix sampling difficulty.

3

Could you share the full traceback please? I think your code should work, but maybe there’s something I’m missing