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Continued Contributor

## Use XPath() to get average

Is it possible to use xpath to calculate average? I'm using this expression to sum, and it works perfectly:

``xpath(xml(outputs('JSON_Amount')), 'sum(/root/Amount)')``

I wonder if there is a way to calculate average. I tried this, but it fails:

``xpath(xml(outputs('JSON_Amount')), 'avg(/root/Amount)')``

Thanks.

1 ACCEPTED SOLUTION

Accepted Solutions
Super User

So unless I'm totally off base - and I did research a bit before typing this - there is still no average function in Power Automate. But what you could do is count the amount of items coming out of the XML and then just divide your sum by that.

I am hoping someone comes in and says "no, rhia, you are wrong, there is a much better way to do this"....

R

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Super User

So unless I'm totally off base - and I did research a bit before typing this - there is still no average function in Power Automate. But what you could do is count the amount of items coming out of the XML and then just divide your sum by that.

I am hoping someone comes in and says "no, rhia, you are wrong, there is a much better way to do this"....

R

# ______________________________________________________________

Did it contribute positively towards finding the final solution? Please give it a thumbs up.

I answer questions on the forum for 2-3 hours every Thursday!

Continued Contributor

Thanks @Rhiassuring. I did a lot of research also, and I arrived to the same conclusion you did. Your recommendation is exactly what I ended up doing. I just calculated the length and divided by the total, outside the xpath

You could use sum() and count() in xpath and use that to get the average outside an xpath function.

New Member

Just to chime in on this post, for anyone in future that wants to do aggregation style calculations over data sets, take a look at the Advanced Data Operations connector. There’s an Aggregate function that does it nicely.

Super User

OooOOOo it's in preview! Thanks, @The_Skin ! Creepy name, but, great tip.

# ______________________________________________________________

Did it contribute positively towards finding the final solution? Please give it a thumbs up.

I answer questions on the forum for 2-3 hours every Thursday!

New Member

Yeah, fair call. 😂

Also, don’t worry about the preview status, it’s definitely here to stay.

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