alamb commented on code in PR #16927: URL: https://github.com/apache/datafusion/pull/16927#discussion_r2240715166
########## docs/source/user-guide/sql/aggregate_functions.md: ########## @@ -618,6 +618,27 @@ regr_avgx(expression_y, expression_x) - **expression_y**: Dependent variable expression to operate on. Can be a constant, column, or function, and any combination of operators. - **expression_x**: Independent variable expression to operate on. Can be a constant, column, or function, and any combination of operators. +### Exmaple + +consider the table: + +```text ++-----+-------------+ +| day | temperature | +| --- | ----------- | +| 1 | 35 | +| 2 | 36 | +| 3 | NULL | +| 4 | 37 | +| 5 | 38 | ++-----+-------------+ +``` + +```sql +SELECT regr_avgx(total_sales, day) AS avg_day --considering day(x) independent variable Review Comment: the query still refers to a column (`total_sales`) that doesn't appear in the query. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: github-unsubscr...@datafusion.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: github-unsubscr...@datafusion.apache.org For additional commands, e-mail: github-h...@datafusion.apache.org
