test_model_builder.py 文件源码

def make_rg_dataset_and_field_manager(self):
        boston = datasets.load_boston()
        dataset = DataSet(boston.data, boston.target, boston.feature_names, "price")

        feature_fields = []
        for i, name in enumerate(dataset.feature_names):
            f = Field(name, "NUMBER", value_mean=np.mean(dataset.data[:, i]), value_std=np.std(dataset.data[:, i]))
            feature_fields.append(f)

        target = Field("price", "NUMBER", value_mean=np.mean(dataset.target), value_std=np.std(dataset.target))
        field_manager = FieldManager(-1, feature_fields, target)

        return dataset, field_manager