如何从 Bigquery 中的 Kmeans 聚类表中获取聚类数？

Question

I want to get the number of clusters that Biqquery automatically created with my code below

   CREATE OR REPLACE MODEL ch09eu.london_station_clusters
        OPTIONS(model_type='kmeans',
        standardize_features = true) AS
    
   SELECT * EXCEPT(station_name)
    from ch09eu.stationstats

Answer 1

As per the documentation when the argument num_clusters is not explicitly passed while creating a model, BigQuery ML will choose a reasonable default based on the number of rows in the training data. Number of clusters can be found under the Details section in the model. Adding below a sample image for reference: