COUNTROWS Duplicates Names with filter

[Anonymous]

Hi!

I'm currently stuck on this what i believe should be a simple endevour.

I am trying to count the duplicates Names within a table and i have a solution for that. Although, i want to count the duplicates from last week only.
Lets say i have week 24,25 & 26 data within my table. I only want to count the duplicates from week 25. Everything else should be blank or recieve zero value.

I've tried several ways but i still get values on all the weeks.
Help would be much appreciated!

-------------------------------------------------------------------------------------------------------------------------------------
Here is my working solution for all weeks:

Count Names 1 =

Var Names = [Name]

RETURN

CALCULATE(

COUNTROWS('Sheet1'),

all('Sheet1'),

'Sheet1'[Name] = Names

)

Here is my solution for highest week - 1 that doesn't seem to be working:

Count Names 2 =
var Names = Sheet1[Name]
var SelectedDate = MAX(Sheet1[Week])
var PreviousWeek = SelectedDate -1

RETURN

CALCULATE(
COUNTROWS('Sheet1'),
CALCULATETABLE(all('Sheet1')),
'Sheet1'[Name] = Names && 'Sheet1'[Week] = PreviousWeek
)

Kind Regards
D

[Anonymous · Accepted solution]

Hi @Anonymous ,

Please remove the ALL() filter:

New measure =
var SelectedDate = MAXX(allselected(Sheet1), Sheet1[Week])
var PreviousWeek = SelectedDate -1
RETURN
CALCULATE(
COUNTROWS('Sheet1'),
filter('Sheet1',
'Sheet1'[Name] = max('Sheet1'[Name] ) && 'Sheet1'[Week] = PreviousWeek
)

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

[Anonymous]

Hi and thank you for your response!
Worked like a charm. Much obliged!

[tamerj1]

Hi @Anonymous 
Would you please share a screenshot that illustrates the expected result. Thank you

[amitchandak]

@Anonymous , Try like

New measure =
var SelectedDate = MAXX(allselected(Sheet1), Sheet1[Week])
var PreviousWeek = SelectedDate -1

RETURN

CALCULATE(
COUNTROWS('Sheet1'),
filter(all('Sheet1'),
'Sheet1'[Name] = max('Sheet1'[Name] ) && 'Sheet1'[Week] = PreviousWeek
)

Also it is better to use a separate year week table or date table with week rank

New columns

Week Rank = RANKX(all('Date'),'Date'[Week Start date],,ASC,Dense)
OR
Week Rank = RANKX(all('Date'),'Date'[Year Week],,ASC,Dense) //YYYYWW format

measures

This Week = CALCULATE(sum('Table'[Qty]), FILTER(ALL('Date'),'Date'[Week Rank]=max('Date'[Week Rank])))
Last Week = CALCULATE(sum('Table'[Qty]), FILTER(ALL('Date'),'Date'[Week Rank]=max('Date'[Week Rank])-1))

Power BI — Week on Week and WTD
https://medium.com/@amitchandak.1978/power-bi-wtd-questions-time-intelligence-4-5-98c30fab69d3
https://community.powerbi.com/t5/Community-Blog/Week-Is-Not-So-Weak-WTD-Last-WTD-and-This-Week-vs-Last-Week/ba-p/1051123
https://www.youtube.com/watch?v=pnAesWxYgJ8

[Anonymous]

Hi @amitchandak and thanks for your reply.

Result with your measure:

It shows correct values now, however. The other weeks are also calulated by themselves.