how to view rank change over time?

[Anonymous]

Hi,

I've got a category value (CAT) stratified into date periods divisions (DATE) (e.g. week 1, week 2 etc), I've created a measure to rank them by DATE the number of sales each CAT is making

e.g.

CAT	DATE	SALES	RANK
A	1	10	3
B	1	20	2
C	1	30	1
A	2	10	3
B	2	20	2
C	2	30	1
A	3	40	1
B	3	20	3
C	3	30	2

I want to create an additional measure or table to show the change in rank from the minimum to maximum of date Value but I'm at a complete loss. I tried creating a second table with the intention of usings LOOKUPVALUE using min/max on the date field but you can't lookup to measures, only columns. 

Help please!

i.e.

CAT	RANK CHANGE
A	-2
B	+1
C	+1

[v-cherch-msft · Accepted solution]

Hi @Anonymous 

You may create measures like below:

Max_Rank =
CALCULATE (
    [Rank],
    TOPN ( 1, ALLEXCEPT ( Table2, Table2[CAT] ), Table2[DATE], DESC )
)

Min_Rank = CALCULATE([Rank],TOPN(1,ALLEXCEPT(Table2,Table2[CAT]),Table2[DATE],ASC))

RANK CHANGE = [Max_Rank]-[Min_Rank]

Regards,

Cherie

[Black3y]

Hi  @v-cherch-msft 

I don't suppose it is possible to do this solutions but when the data is in 2 different tables as opposed to one?

I am trying to highlight rank change between the 2 tables below...

Thanks,

[Anonymous]

Use:

measure = 

var

table3 = union(table1, table2)

return

<dax for dax measure goes here using table 3 as reference>

[Anonymous]

Perfect, thanks.