如何在 AzureML Python SDK 中将 PipelineParameter 传递到 AutoMLStep

Question

我正在将 AzureML SDK 管道与 AutoMLStep 结合使用。如何将 PipelineParameter 添加到 AutoMLStep 配置中？我想用它来定义 max_horizon。它应该与

一起使用

passthru_automl_config=False

但我收到错误

Message: Unsupported value of max_horizon. max_horizon must be integer or 'auto'

max_horizon = PipelineParameter(name='max_horizon', default_value=30)

automl_settings = {
            "iteration_timeout_minutes" : 60
            "grain_column_names": ["COUNTRY_CODE"],
            "time_column_name": "DATE"
        }        

automl_config = AutoMLConfig(task='forecasting',
                             path = "./src",
                             primary_metric=primary_metric,
                             iterations=iterations,
                             max_concurrent_iterations=max_concurrent_iterations,
                             training_data = train_data,
                             label_column_name = label,
                             n_cross_validations=5,
                             compute_target = compute_target,
                             max_horizon= max_horizon,
                             **automl_settings)

trainWithAutomlStep = AutoMLStep(name="experiment_name",
                                 automl_config=automl_config,
                                 passthru_automl_config=False,
                                 outputs=[metrics_data, model_data],
                                 allow_reuse=True)

Answer 1

您运行陷入类型检查问题。 max_horizon.

不允许类型 PipelineParameter

作为替代方案：您为什么不争取一个简单的 python_script_step 并使用 PipelineParameter 作为其输入。然后在 Python-Step 文件中定义 AutoML 例程。这样一来，一切尽在掌握...

Answer 2

这是微软的回复：

PipelineParameter is currently not supported for use with AutoMLConfig parameters inside of AutoMLStep.

Then, the only workaround in order to use PipelineParameter with AutoMLConfig would be to use AutoML in a PythonScriptStep, which is a similar usage/approach when you use AutoMLConfig with ParallelRunConfig in pipelines (without using AutoMLStep), like the ‘Many Models’ solution accelerator does.

如何在 AzureML Python SDK 中将 PipelineParameter 传递到 AutoMLStep

How to pass PipelineParameter into AutoMLStep in AzureML Python SDK

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