How can I do stratified sampling on BigQuery?
For example, we want a 10% proportionate stratified sample using the category_id as the strata. We have up to 11000 category_ids in some of our tables.
See Question&Answers more detail:osHow can I do stratified sampling on BigQuery?
For example, we want a 10% proportionate stratified sample using the category_id as the strata. We have up to 11000 category_ids in some of our tables.
See Question&Answers more detail:os