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ronlolololo's avatar
ronlolololo
Icon for Helper I rankHelper I
6 years ago
Solved

MAXX Function Lookup

Hi folks, i am playing around the DAX and came across this issue. So the calculated column should return the case number of last day of the same county. It works fine for the first few rows but the s...
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  • ryan_mayu's avatar
    ryan_mayu
    6 years ago

    ronlolololo 

    please try this

    Column = 
VAR _date=MAXX(FILTER('Table','Table'[countryFIPS]=EARLIER('Table'[countryFIPS])&&'Table'[State]=EARLIER('Table'[State])&&'Table'[date]<EARLIER('Table'[date])),'Table'[date])
return MAXX(FILTER('Table','Table'[countryFIPS]=EARLIER('Table'[countryFIPS])&&'Table'[State]=EARLIER('Table'[State])&&'Table'[date]=_date),'Table'[cases])

v-kelly-msft's avatar
v-kelly-msft
Icon for Community Support rankCommunity Support
6 years ago

Hi  ronlolololo ,

 

It is because your date column is ranking ascending,so using your expression can get the result you need,but if your date column is disordering,then you will get a wrong return,such as your case number.

The best solution is to create an index column.

I made a simple sample,pls see attached.

 

Best Regards,
Kelly
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