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Posted to issues-all@impala.apache.org by "Pranav Yogi Lodha (Jira)" <ji...@apache.org> on 2023/03/01 07:39:00 UTC
[jira] [Updated] (IMPALA-11957) Implement Regression functions : regr_slope(), regr_intercept() and regr_r2()
[ https://issues.apache.org/jira/browse/IMPALA-11957?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Pranav Yogi Lodha updated IMPALA-11957:
---------------------------------------
Description:
The linear regression functions fit an ordinary-least-squares regression line
to a set of number pairs which can be used both as aggregate and analytic functions.
regr_slope() returns the slope of the line.
regr_intercept() returns the y-intercept of the regression line.
regr_r2() takes two arguments of numeric type and returns the coefficient of determination (also called R-squared or goodness of fit) for the regression.
> Implement Regression functions : regr_slope(), regr_intercept() and regr_r2()
> -----------------------------------------------------------------------------
>
> Key: IMPALA-11957
> URL: https://issues.apache.org/jira/browse/IMPALA-11957
> Project: IMPALA
> Issue Type: Sub-task
> Reporter: Pranav Yogi Lodha
> Assignee: Pranav Yogi Lodha
> Priority: Major
>
> The linear regression functions fit an ordinary-least-squares regression line
> to a set of number pairs which can be used both as aggregate and analytic functions.
> regr_slope() returns the slope of the line.
> regr_intercept() returns the y-intercept of the regression line.
> regr_r2() takes two arguments of numeric type and returns the coefficient of determination (also called R-squared or goodness of fit) for the regression.
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