RobynPy - Error in `robyn.evaluate_models`

[JJohnson-DA]

Ran into another error when running robyn.evaluate_models. Full stack trace is below, issue is in the prophet decomp plot. My guess is that because my model doesn't have any factor_vars it is throwing the concatenation error.

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
Cell In[11], line 10
      1 # %% Evaluate Models
      2 configs = ClusteringConfig(
      3     dep_var_type=DependentVarType(mmm_data.mmmdata_spec.dep_var_type),
      4     cluster_by=ClusterBy.HYPERPARAMETERS,
   (...)      7     weights=[1.0, 1.0, 1.0],
      8 )
---> 10 robyn.evaluate_models(cluster_config=configs)

File /opt/miniconda3/envs/robyn_mmm/lib/python3.12/site-packages/robyn/robyn.py:283, in Robyn.evaluate_models(self, pareto_config, cluster_config, display_plots, export_plots)
    273 if display_plots or export_plots:
    274     pareto_visualizer = ParetoVisualizer(
    275         pareto_result=self.pareto_result,
    276         mmm_data=self.mmm_data,
   (...)    281         model_outputs=self.model_outputs,
    282     )
--> 283     pareto_visualizer.plot_all(display_plots, self.working_dir)
    284     if self.cluster_result:
    285         cluster_visualizer = ClusterVisualizer(
    286             self.pareto_result,
    287             self.cluster_result,
    288             self.mmm_data,
    289         )

File /opt/miniconda3/envs/robyn_mmm/lib/python3.12/site-packages/robyn/visualization/pareto_visualizer.py:991, in ParetoVisualizer.plot_all(self, display_plots, export_location)
    988     break  # TODO: This will generate too many plots. Only generate plots for the first solution. we can export all plots to a folder if too many to display
    990 if not self.model_outputs.hyper_fixed:
--> 991     prophet_decomp_plot = self.create_prophet_decomposition_plot()
    992     if prophet_decomp_plot:
    993         figures["prophet_decomp"] = prophet_decomp_plot

File /opt/miniconda3/envs/robyn_mmm/lib/python3.12/site-packages/robyn/visualization/pareto_visualizer.py:737, in ParetoVisualizer.create_prophet_decomposition_plot(self)
    734 prophet_vars_str = [variable.value for variable in prophet_vars]
    735 prophet_vars_str.sort(reverse=True)
    736 value_variables = (
--> 737     [
    738         (
    739             "dep_var"
    740             if hasattr(df, "dep_var")
    741             else self.mmm_data.mmmdata_spec.dep_var
    742         )
    743     ]
    744     + factor_vars
    745     + prophet_vars_str
    746 )
    747 df_long = df.melt(
    748     id_vars=["ds"],
    749     value_vars=value_variables,
    750     var_name="variable",
    751     value_name="value",
    752 )
    753 df_long["ds"] = pd.to_datetime(df_long["ds"])

TypeError: can only concatenate list (not "NoneType") to list