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https://issues.apache.org/jira/browse/IMPALA-11957?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Smith resolved IMPALA-11957.
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Fix Version/s: Impala 4.3.0
Resolution: Fixed
> 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
> Fix For: Impala 4.3.0
>
>
> 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() takes two arguments of numeric type and returns the slope of
> the line.
> * regr_intercept() takes two arguments of numeric type and 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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