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https://issues.apache.org/jira/browse/STATISTICS-71?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17739368#comment-17739368
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Gilles Sadowski commented on STATISTICS-71:
-------------------------------------------
Is {{DoubleStorelessUnivariateStatistics}} to be used as a "marker" interface?
If so, what is the use-case?
E.g. is "Storeless" a required part of the name? Or is it an "implementation
detail"?
It seems that alternative (internal) implementations could be built:
{code}
public class StatisticsBuilder {
/**
* @param storeless Whether the instance should be storeless.
* @return the statistics.
*/
public static Mean createMean(boolean storeless) {
return storeless ? StorelessMean.create() : PlainMean.create();
}
}
{code}
> Implementation of Univariate Statistics
> ---------------------------------------
>
> Key: STATISTICS-71
> URL: https://issues.apache.org/jira/browse/STATISTICS-71
> Project: Commons Statistics
> Issue Type: Task
> Components: descriptive
> Reporter: Anirudh Joshi
> Priority: Minor
> Labels: gsoc, gsoc2023
>
> Jira ticket to track the implementation of the Univariate statistics required
> for the updated SummaryStatistics API.
> The implementation would be "storeless". It should be used for calculating
> statistics that can be computed in one pass through the data without storing
> the sample values.
> Currently I have the definition of API as (this might evolve as I continue
> working)
> {code:java}
> public interface DoubleStorelessUnivariateStatistic extends DoubleSupplier {
> DoubleStorelessUnivariateStatistic add(double v);
> long getCount();
> void combine(StorelessUnivariateStatistic other);
> } {code}
>
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