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julesdude
Post Partisan
Post Partisan

Return Value based on Last Date and Return Value Based on Second to Last Date (Penultimate Date)

Hi there,

 

This might be quite a simple one - sorry that I am new to DAX and learning. I have the following table (simplified)

 

AssetDateValue
aaa24/07/202020
aaa  
aaa25/07/202230
aaa01/04/201950
aaa04/06/201940
bbb17/03/202170
bbb10/02/201950
bbb  
bbb14/03/202040
bbb11/02/201880
bbb10/02/201790
ccc02/02/201930
ccc02/02/201830

 

I am trying to create a table in my report that will reference this table to make it look like this:

 

AssetCurrent ValuePrevious Value% Difference
aaa3020 
bbb7040 
ccc3030 

 

Basically I would like the asset listed 'distinctly', and then for current value column:

- each decided by finding the most recent date, and returning the value

For previous value

- find the second to last most recent date and return the value

For % difference

- The % difference between the above two

 

Any help really appreciated.

1 ACCEPTED SOLUTION

It seems I forgot to include the SUM() function here.

Try ->
VAR ValueSecondLastDate = Calculate(SUM(Table1[Value]), Table1[Date] = SecondLastDate)

When writing measures, you need to use functions on the columns

View solution in original post

5 REPLIES 5
arichard19
Resolver I
Resolver I

Edit to Above Formula ->

Try the following ->

ValueLastDate = Calculate(SUM(Table1[Value]), LASTDATE(Table1[Date])) 

ValueSecondLastDate =

VAR SecondLastDate = CALCULATE
(MAX(Table1[Date]), Table1[Date] < MAX(Table1[Date]))

VAR ValueSecondLastDate = Calculate(Table1[Value], Table1[Date] = SecondLastDate)

RETURN
ValueSecondLastDate


Value Delta % = 
VAR Delta = ValueLastDate - ValueSecondLastDatee
Return
Calculate(Divide(Delta, ValueSecondLastDate))

Hi @arichard19 

Many thanks for this! I have split into two measures. Measure 1:

 

ValueLastDate = Calculate(SUM(Table1[Value]), LASTDATE(Table1[Date])) 

 

This works fine.

 

But measure 2:

ValueSecondLastDate =

VAR SecondLastDate = CALCULATE
(MAX(Table1[Date]), Table1[Date] < MAX(Table1[Date]))

 

VAR ValueSecondLastDate = Calculate(Table1[Value], Table1[Date] = SecondLastDate)

RETURN
ValueSecondLastDate
 
This is giving me an error - Cannot find table 'Table1[Value]'. And the intellisense when typing only provides other DAX measures instead of any table and column reference.
What am I doing wrong?

 

 

It seems I forgot to include the SUM() function here.

Try ->
VAR ValueSecondLastDate = Calculate(SUM(Table1[Value]), Table1[Date] = SecondLastDate)

When writing measures, you need to use functions on the columns

Thank you so much @arichard19 for you help. Works perfectly. I just added the square brackets for the references to other measures where needed in the DAX

 

 

arichard19
Resolver I
Resolver I

Try the following ->

LastDate = Calculate(SUM(Table1[Value]), LASTDATE(Table1[Date])) 

SecondLastDate =
VAR LastDate = LASTDATE(Table1[Date])) 
RETURN
Calculate(SUM(Table1[Value]), MAX(Table1[Date]) < LastDate))

Delta % = 
VAR Delta = LastDate - SecondLastDate
Return
Calculate(Divide(Delta, SecondLastDate))

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