[Backlogmanager] [FIWARE-JIRA] (HELP-8852) [fiware-stackoverflow] Proton CEP: How to count distinct instances in temporal context

[José Ignacio Carretero Guarde (JIRA)]

     [ https://jira.fiware.org/browse/HELP-8852?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

José Ignacio Carretero Guarde resolved HELP-8852.
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    Resolution: Done

> [fiware-stackoverflow] Proton CEP: How to count distinct instances in temporal context
> --------------------------------------------------------------------------------------
>
>                 Key: HELP-8852
>                 URL: https://jira.fiware.org/browse/HELP-8852
>             Project: Help-Desk
>          Issue Type: Monitor
>          Components: FIWARE-TECH-HELP
>            Reporter: Backlog Manager
>            Assignee: Uri Shani
>              Labels: fiware, fiware-cep
>
> Created question in FIWARE Q/A platform on 16-02-2016 at 18:02
> {color: red}Please, ANSWER this question AT{color} https://stackoverflow.com/questions/35438731/proton-cep-how-to-count-distinct-instances-in-temporal-context
> +Question:+
> Proton CEP: How to count distinct instances in temporal context
> +Description:+
> I wish to count the number of distinct visitors to a store each half an hour.
> I know I will need:
> the temporal context (half an hour)
> What kind of EPA should I create to count distinct visitor ids?
> I suppose I will need an internal segmentation by visitorId?



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