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https://issues.apache.org/jira/browse/IMPALA-12361?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pranav Yogi Lodha updated IMPALA-12361:
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Description:
regr_count() returns an integer that is the number of non-null number pairs
used to fit the regression line.
regr_avgx() evaluates the average of the independent variable of the regression
line. It computes avg(expr2) after the elimination of null (expr1, expr2).
regr_avgy() evaluates the average of the dependent variable of the regression
line. It computes avg(expr1) after the elimination of null (expr1, expr2).
was:
regr_count() returns an integer that is the number of non-null number pairs
used to fit the regression line.
regr_avgx() evaluates the average of the independent variable(x) of the
regression line. It computes avg(expr2) after the elimination of null (expr1,
expr2).
regr_avgy() evaluates the average of the dependent variable(y) of the
regression line. It computes avg(expr1) after the elimination of null (expr1,
expr2).
> Implementation of regr_count(), regr_avgx() and regr_avgy()
> -----------------------------------------------------------
>
> Key: IMPALA-12361
> URL: https://issues.apache.org/jira/browse/IMPALA-12361
> Project: IMPALA
> Issue Type: New Feature
> Reporter: Pranav Yogi Lodha
> Priority: Major
>
> regr_count() returns an integer that is the number of non-null number pairs
> used to fit the regression line.
> regr_avgx() evaluates the average of the independent variable of the
> regression line. It computes avg(expr2) after the elimination of null (expr1,
> expr2).
> regr_avgy() evaluates the average of the dependent variable of the regression
> line. It computes avg(expr1) after the elimination of null (expr1, expr2).
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