nerdexam
Microsoft

DP-100 · Question #233

Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might…

The correct answer is B. No. The answer is No because the solution uses an incorrect method to log a collection of unique label values as metrics. The Azure ML run context's run.log() method logs a single scalar value per call and does not correctly handle a list or array of values as a single metric. To…

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Question

Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution. After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen. You plan to use a Python script to run an Azure Machine Learning experiment. The script creates a reference to the experiment run context, loads data from a file, identifies the set of unique values for the label column, and completes the experiment run: from azureml.core import Run import pandas as pd run = Run.get_context() data = pd.read_csv('data.csv') label_vals = data['label'].unique() # Add code to record metrics here run.complete() The experiment must record the unique labels in the data as metrics for the run that can be reviewed later. You must add code to the script to record the unique label values as run metrics at the point indicated by the comment. Solution: Replace the comment with the following code: run.upload_file('outputs/labels.csv', './data.csv') Does the solution meet the goal?

Options

  • AYes
  • BNo

How the community answered

(16 responses)
  • A
    31% (5)
  • B
    69% (11)

Explanation

The answer is No because the solution uses an incorrect method to log a collection of unique label values as metrics. The Azure ML run context's run.log() method logs a single scalar value per call and does not correctly handle a list or array of values as a single metric. To log a list of values (the unique labels), you must use run.log_list('label_column_unique_values', list_of_values), which is specifically designed to record multiple values under one metric name so they appear correctly in the experiment run history.

Topics

#Azure ML SDK#Experiment Tracking#Metrics Logging#Run Artifacts

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