Time series Timeseries Deep Learning Machine Learning Python Pytorch fastai | State-of-the-art Deep Learning library for Time Series and Sequences in Pytorch / fastai
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ValueError Traceback (most recent call last)
Cell In[193], line 29
26 mae=mean_absolute_error(test_y, test_preds)
27 return mae
---> 29 run_optuna_study(objective, study_type='bayesian', n_trials=32, direction=['minimize','minimize'])
File ~/anaconda3/envs/ai4c/lib/python3.11/site-packages/tsai/optuna.py:77, in run_optuna_study(objective, resume, study_type, multivariate, search_space, evaluate, seed, sampler, pruner, study_name, direction, n_trials, timeout, gc_after_trial, show_progress_bar, save_study, path, show_plots)
75 print(f" {key}: {value}")
76 else:
---> 77 study = optuna.create_study(sampler=sampler, pruner=pruner, study_name=study_name, direction=direction)
78 if evaluate: study.enqueue_trial(evaluate)
79 try:
File ~/anaconda3/envs/ai4c/lib/python3.11/site-packages/optuna/_convert_positional_args.py:83, in convert_positional_args.<locals>.converter_decorator.<locals>.converter_wrapper(*args, **kwargs)
77 raise TypeError(
78 f"{func.__name__}() got multiple values for arguments {duplicated_kwds}."
79 )
81 kwargs.update(inferred_kwargs)
---> 83 return func(**kwargs)
File ~/anaconda3/envs/ai4c/lib/python3.11/site-packages/optuna/study/study.py:1240, in create_study(storage, sampler, pruner, study_name, direction, load_if_exists, directions)
1235 raise ValueError("The number of objectives must be greater than 0.")
1236 elif any(
1237 d not in ["minimize", "maximize", StudyDirection.MINIMIZE, StudyDirection.MAXIMIZE]
1238 for d in directions
1239 ):
-> 1240 raise ValueError(
1241 "Please set either 'minimize' or 'maximize' to direction. You can also set the "
1242 "corresponding `StudyDirection` member."
1243 )
1245 direction_objects = [
1246 d if isinstance(d, StudyDirection) else StudyDirection[d.upper()] for d in directions
1247 ]
1249 storage = storages.get_storage(storage)
ValueError: Please set either 'minimize' or 'maximize' to direction. You can also set the corresponding `StudyDirection` member.
https://github.com/optuna/optuna-examples/blob/main/multi_objective/botorch_simple.py According to optuna examples, I passed in the list.