How to add latest data on map tooltip?

[Georger2323]

I'm using ArcGIS maps. I have 3 columns, region_name, temperature and date_time.

I want on the map, at the tooltip that appears when you hover your mouse over the bubble, for the latest temperature to appear for each region.

Write now when I add the Temperature column on the "tooltips", it shows me the sum of the temperature:

What I want it to show is the temperature of the latest date and time on my table, for each region.

I know I can find the latest date and time by using Max function, but I don't know how to show the temperature of the rows that qualify. 

Thank you.

[Mariusz]

Hi @Georger2323 

Please see the below DAX measure, this should do the trick.

Measure = 
CALCULATE(
    MAX( 'Table'[temperature] ), 
    LASTDATE( 'Table'[date_time] )
)

Best Regards,
Mariusz

If this post helps, then please consider Accepting it as the solution.

Please feel free to connect with me.

[Georger2323]

@Mariusz 

I get the following error:

It's true that I have several date_times that are the same, because I have several regions. Each region has its own date_time. How could I fix this?

Thank you.

[Mariusz · Accepted solution]

Hi @Georger2323 

Give this a go instead

Max Temp = 
VAR _last = { CALCULATE(
    MAX( 'Table'[date_time] ),
    ALL( 'Table'[date_time])
) } 
RETURN CALCULATE(
    MAX( 'Table'[temperature] ),
    TREATAS( _last, 'Table'[date_time] )
)

Best Regards,
Mariusz

If this post helps, then please consider Accepting it as the solution.

Please feel free to connect with me.

[Georger2323]

@Mariusz  Thank you so much, I appreciate it.

Would you mind explaining why your 2nd solution fixes the issue I had on your 1st one?

[Mariusz]

Hi @Georger2323 

No problem happy I could help.

For the explanation please refer to @v-frfei-msft  post.

Best Regards,
Mariusz

Please feel free to connect with me.

[v-frfei-msft]

Hi @Georger2323 ,

Refering to the document abouth LASTDATE. When the current context is a single date, the date returned by the FIRSTDATE and LASTDATE functions will be equal. That's why you got the error message.