single channel MMMs don't work

[williambdean]

Can use the example but with a single channel

import pandas as pd

from pymc_marketing.mmm import (
    GeometricAdstock,
    LogisticSaturation,
    MMM,
)

data_url = "https://raw.githubusercontent.com/pymc-labs/pymc-marketing/main/data/mmm_example.csv"
data = pd.read_csv(data_url, parse_dates=["date_week"])

mmm = MMM(
    adstock=GeometricAdstock(l_max=8),
    saturation=LogisticSaturation(),
    date_column="date_week",
    channel_columns=["x1"],
    control_columns=[
        "event_1",
        "event_2",
        "t",
    ],
    yearly_seasonality=2,
)

X = data.drop("y", axis=1)
y = data["y"]
mmm.fit(X, y)

[williambdean]

This includes a question mark. @cetagostini can you provide what you ran since the above code works

Related to pymc-devs/pytensor#1365