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Posted to jira@arrow.apache.org by "Neal Richardson (Jira)" <ji...@apache.org> on 2022/10/04 11:57:00 UTC
[jira] [Updated] (ARROW-14021) [R] Bind median() and quantile() to exact not approximate median and quantile
[ https://issues.apache.org/jira/browse/ARROW-14021?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Neal Richardson updated ARROW-14021:
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Fix Version/s: (was: 10.0.0)
> [R] Bind median() and quantile() to exact not approximate median and quantile
> -----------------------------------------------------------------------------
>
> Key: ARROW-14021
> URL: https://issues.apache.org/jira/browse/ARROW-14021
> Project: Apache Arrow
> Issue Type: Improvement
> Components: R
> Reporter: Ian Cook
> Priority: Major
>
> ARROW-13772 binds {{quantile()}} to {{tdigest()}} which returns approximate quantiles and binds {{median()}} to {{approximate_median()}} which returns an approximate median. The bindings issue a warning saying that the median/quantile is approximate. Once ARROW-13309 is implemented, modify the binding to call Arrow functions that returns exact quantiles and medians, and remove the warnings.
> We should keep the approximate quantile and median bindings but rename them.
> When doing this, we should also modify the bindings to accept {{type}} and {{interpolation}} arguments like we do in the {{quantile.ArrowDatum}} method: https://github.com/apache/arrow/blob/170a24fc5f9f6f9c7c7d15a716c5995f03204a4b/r/R/compute.R#L156-L187
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