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reporter9's avatar
reporter9
Frequent Visitor
3 years ago
Solved

Average per month group by

Hello, I need the average of duration per month for the colors. It should be possible to filter the id. To calculate the average I need the sum for each month and color divide by distinctcount from ...
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  • v-yueyunzh-msft's avatar
    v-yueyunzh-msft
    3 years ago

    Hi, reporter9 

    Hi,

    Thank you for your quick response, I check your dax and find that the reason that causes this issue is that “format” funmction.

    Because the “format” function return the “Text” type data , we can not compare the “Text” type data to the “Date” type data. And the other error is that “ _date < _quarter_end”. We can not use the _date as the condition, we need use the ‘Table’[month_date] because we are filtering the ‘Table’.

    So in the end , you can try to user this dax:

    Average2 = var _phase = SELECTEDVALUE('Table'[Phase])

var _date =VALUES('Table'[Month_Date])

var _quarter_end = DATE( YEAR( TODAY() ), QUARTER( TODAY() ) * 3 + 1, 1 ) - 1

var _duration =SUMX(FILTER( ALLSELECTED('Table'), 'Table'[month_date] in _date && 'Table'[Phase]=_phase) , [Duration])

var _count =COUNTROWS(DISTINCT(SELECTCOLUMNS( FILTER(ALLSELECTED('Table'),

'Table'[month_date] in _date

&& 'Table'[Month_Date]< _quarter_end

) ,"ID",[ID],"Month_date",[Month_Date])))

return

DIVIDE(_duration,_count)

     

    Thank you for your time and sharing, and thank you for your support and understanding of PowerBI! 

     

    Best Regards,

    Aniya Zhang

    If this post helps, then please consider Accept it as the solution to help the other members find it more quickly

     

v-yueyunzh-msft's avatar
v-yueyunzh-msft
Icon for Community Support rankCommunity Support
3 years ago

Hi , reporter9 

Thank you for your quick feedback. Based on the screenshot you provided , i can understand that the issue happens when you try to dill to the quater and show the "sum" not the "average" . The  root cause is in my "distinctcount" is wrong .

You can just also update the dax to this:

Average = var _phase = SELECTEDVALUE('Table'[Phase])
var _date =VALUES('Table'[Month_Date])
var _duration =SUMX(FILTER( ALLSELECTED('Table'), 'Table'[month_date] in _date && 'Table'[Phase]=_phase) , [Duration])
var _count =COUNTROWS(DISTINCT(SELECTCOLUMNS( FILTER(ALLSELECTED('Table'),'Table'[month_date] in _date) ,"ID",[ID],"Month_date",[Month_Date])))
return
DIVIDE(_duration,_count)

Then we can meet your need in the end:

Thank you for your time and sharing, and thank you for your support and understanding of PowerBI! 

 

Best Regards,

Aniya Zhang

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly

 

reporter9's avatar
reporter9
Frequent Visitor
3 years ago

Hi v-yueyunzh-msft ,

loooks good. Additionally always the current quarter (var _quarter_end) should not be visable. I have 'update' your proposal and I have the issue that with this the visual is blank. Where is my fault?

Thank you.

Average = var _phase = SELECTEDVALUE('Table'[Phase])
var _date =VALUES('Table'[Month_Date])
var _quarter_end = format(DATE( YEAR( TODAY() ), QUARTER( TODAY() ) * 3 + 1, 1 ) - 1,"DD/MM/YYYY")
var _duration =SUMX(FILTER( ALLSELECTED('Table'), 'Table'[month_date] in _date && 'Table'[Phase]=_phase) , [Duration])
var _count =COUNTROWS(DISTINCT(SELECTCOLUMNS( FILTER(ALLSELECTED('Table'),
'Table'[month_date] in _date
&& _date < _quarter_end
) ,"ID",[ID],"Month_date",[Month_Date])))
return
DIVIDE(_duration,_count)