关于“通过 BigQuery ML 创建机器学习模型：实验室挑战赛”的评价

ATHARVA T. · 已于 over 4 years前审核

Pin Y. · 已于 over 4 years前审核

task no 5 , following query is not accept to get the point, please check your checking point mechanism select avg(predicted_label) AS average_predicted_trip_length from ml.predict(MODEL bike.bike_subscription_model,( select name as start_station_name, subscriber_type, extract(hour from start_time) as start_hour, duration_minutes as label from `bigquery-public-data.austin_bikeshare.bikeshare_trips` as trips left join `bigquery-public-data.austin_bikeshare.bikeshare_stations` as stations on trips.start_station_id=stations.station_id where extract(year from start_time)=2019 and name='21st & Speedway @PCL' and subscriber_type='Single Trip' and duration_minutes>0 ) )

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