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import numpy as np |
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import pandas as pd |
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from hyperactive import Hyperactive |
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def test_issue_25(): |
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# set a path to save the dataframe |
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path = "./search_data.csv" |
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search_space = { |
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"n_neighbors": list(range(1, 50)), |
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} |
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# get para names from search space + the score |
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para_names = list(search_space.keys()) + ["score"] |
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# init empty pandas dataframe |
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search_data = pd.DataFrame(columns=para_names) |
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search_data.to_csv(path, index=False) |
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def objective_function(para): |
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# score = random.choice([1.2, 2.3, np.nan]) |
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score = np.nan |
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25
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# you can access the entire dictionary from "para" |
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parameter_dict = para.para_dict |
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# save the score in the copy of the dictionary |
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parameter_dict["score"] = score |
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# append parameter dictionary to pandas dataframe |
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search_data = pd.read_csv(path, na_values="nan") |
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search_data_new = pd.DataFrame( |
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parameter_dict, columns=para_names, index=[0] |
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) |
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# search_data = search_data.append(search_data_new) |
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search_data = pd.concat( |
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[search_data, search_data_new], ignore_index=True |
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) |
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search_data.to_csv(path, index=False, na_rep="nan") |
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return score |
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46
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hyper0 = Hyperactive() |
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hyper0.add_search(objective_function, search_space, n_iter=50) |
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hyper0.run() |
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50
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search_data_0 = pd.read_csv(path, na_values="nan") |
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""" |
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the second run should be much faster than before, |
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because Hyperactive already knows most parameters/scores |
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""" |
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hyper1 = Hyperactive() |
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hyper1.add_search( |
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objective_function, |
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search_space, |
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n_iter=50, |
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memory_warm_start=search_data_0, |
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) |
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hyper1.run() |
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SimonBlanke /
Hyperactive
