Does Clustering Re-Run/Refresh

[ElliotP]

Morning,

I've been doing somethings with clustering and I can't work out if the clusters will re-run upon refresh or if they are static from the moment you have the clusters. So for example, you run clusters, recieve 4 back, new data comes in, will the powerbi service re-run the clustering to redefine/rebase the clustered groups or does it just maintain what was previous?

I've had a look but I couldn't find any documentation/threads.

[v-yuezhe-msft]

@ElliotP,

Which cluster do you refer to? The current refresh functionality in Power BI Service is “all or nothing”, when you make changes on your data source, Power BI performs a complete refresh of the data.

Regards,
Lydia

[ElliotP]

The all or nothing thing I think is what I'm hoping to hear.

What I mean, is when the report is refreshed either in the live service or in the desktop report; is clustering re-run over the same datapoints as specified when originally "automatically find clusters" 'ered?

[v-yuezhe-msft · Accepted solution]

@ElliotP,

In Power BI Desktop, you can perform incremental refresh with DAX, you can refer to this blog to get more details.

In Power BI Service, it will perform a complete refresh of the data each time data changes.

Regards,
Lydia