how to return dynamic result according to selected value

[oakgold]

Hi experts, I want to create a table visual that returns the selected top n table 

here the sample data:

week		id		value
w1		E01		163
w1		E01		145
w1		E02		94
w1		E02		35
w1		E03		123
w1		E04		8
w1		E06		177
w1		E07		38
w2		E01		103
w2		E02		180
w2		E03		31
w2		E04		57
w2		E06		88
w2		E07		179
w2		E08		69
w3		E02		177
w3		E03		176
w3		E04		62
w3		E06		92

and the expecte result is rank of id based on amount of each week, and returns a table with week, id, sum of amount and top n of rank, notice that the rank is based on the slicer of the value, the slicer is another table with no relation with the data above:

topn

1

2

3

...

10,

for example, when topn slicer is 3, the expected table is: 

week		id		sum		rank
w1		E01		300		2
w1		E02		200		3
w1		E06		700		1
w2		E02		100		1
w2		E06		20		3
w2		E07		50		2
w3
…

when topn slicer is 4, then the table is:

week		id		sum		rank
w1		E01		300		2
w1		E02		200		3
w1		E06		700		1
w1		E07		166		4
w2		E02		100		1
w2		E06		20		3
w2		E07		50		2
w2		E01		10		4
w3
…

[v-fenling-msft · Accepted solution]

Hi, @BeaBF 
I am in favor of your method. At the same time I would like to share another solution.

Hi, @oakgold @oakfootballclub 

I am glad to help you. 

According to your description, you want to how to return dynamic result according to selected value?

If I understand you correctly, then you can refer to my solution. 

1. Create a new table for handsome selection of top n.

2. New table, calculate the value grouped according to week and id. 

Table2 = 
ADDCOLUMNS (
    SUMMARIZE (
        Table_,
        Table_[week],
        Table_[id],
        "TotalValue", SUM ( Table_[value] )
    ),
    "TotalValueByWeekAndID", [TotalValue]
)

3. New Column, according to the value calculated in the first step of the descending order, to get the top three values. 

RankWithinWeekAndID = 
RANKX (
    FILTER ( ALL ( 'Table2' ), 'Table2'[week] = EARLIER ( 'Table2'[week] ) ),
    'Table2'[TotalValueByWeekAndID],
    ,
    DESC,
    DENSE
)

4.New Measure, and then use the Measure to filter the visual. 

TopNFrequency = 
VAR CurrentID =
    SELECTEDVALUE ( Table2[id] )
    Var Top_N = SELECTEDVALUE('Top_Number'[TopN])
RETURN
    CALCULATE (
        COUNTROWS (
            FILTER ( Table2, Table2[RankWithinWeekAndID] <= Top_N && Table2[id] = CurrentID )
        )
    )

5.Change slicer to single selection:

6.Here is the result: 

I hope my suggestions give you good ideas, if you have any more questions, please clarify in a follow-up reply.

Best Regards,
Fen Ling,

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

[BeaBF]

@oakgold Hi! Here the measure for rank:

Rank =

VAR CurrentWeek = SELECTEDVALUE('Table'[week])

RETURN

    RANKX(

        FILTER(

            ALL('Table'),

            'Table'[week] = CurrentWeek

        ), CALCULATE(SUM('Table'[value])),

        ,

        DESC, Skip

    )

if it's ok please accept my answer as a solution!

BBF

[oakfootballclub]

the selected value actually should be rank not week😁

[BeaBF]

@oakfootballclub @oakgold the correct measure:

Rank =

VAR CurrentWeek = SELECTEDVALUE('Table'[week])

VAR Calc =

    RANKX(

        FILTER(

            ALL('Table'),

            'Table'[week] = CurrentWeek

        ), CALCULATE(SUM('Table'[value])),

        ,

        DESC, Skip

    )

RETURN IF(Calc <= SELECTEDVALUE(TOPN_TABLE[topn]), Calc)

now if you select from the slicer 4 it returns:

if you select 3, it returns:

The SELECTEDVALUE on week is used only to group by Week in the rank calc.

BBF