topic Re: DAX to Lookup Values in Another Column and Subtract to Achieve Remaining Columns in DAX Commands and Tips

DAX to Lookup Values in Another Column and Subtract to Achieve Remaining Columns

powerbiuser1000 — Thu, 11 May 2023 08:17:22 GMT

Hi All,

Hoping you you may be able to assist with my questions/challenge.

I have the below table and am wanting to achieve the output of the Column named "Remaining Sites"

Current :

Hoping to create a Column named "Remaining Sites" :

The unique combination of values are Ship, Ship Type, Ship Style and Sites.

So for each combination of Ship, Ship Type, Ship Style and Sites there are areas which get enetered in.

I am looking to have a column called "Remaining Sites" which looks up the value of 'Sites' and removes the 'Areas'.

Using the first 2 rows as an example, the Sites are: BB,EE,FF and I am needing to take away the areas for that Ship, Ship Type, Ship Style which are BB and EE. This would leave the column with FF.

I have tried to use a Matrix and then use LOOKUP VALUE which any luck. Have also tried to use the FIND and SEARCH functions but haven't got anywhere as of yet.

Apprecaite any help or guidance.

Re: DAX to Lookup Values in Another Column and Subtract to Achieve Remaining Columns

lbendlin — Mon, 15 May 2023 00:52:30 GMT

Use EXCEPT for that, or NOT IN { }.

Re: DAX to Lookup Values in Another Column and Subtract to Achieve Remaining Columns

powerbiuser1000 — Mon, 15 May 2023 01:06:47 GMT

Hi Ibendlin, thank you for that. However for Ship 1, it needs to lookup the 'area' for both the 1st and 2nd row and then use NOT IN { }.

For example, the 1st row needs to consider the 2nd row. And the 2nd row needs to consider the first. So need to add BB and EE and then subtract from 'Sites':

So BB, EE NOT IN {'Sites'), so the result can be FF as shown in the second table above.

Re: DAX to Lookup Values in Another Column and Subtract to Achieve Remaining Columns

lbendlin — Mon, 15 May 2023 01:26:12 GMT

Yes, I assumed you know how to handle filter context.

Re: DAX to Lookup Values in Another Column and Subtract to Achieve Remaining Columns

powerbiuser1000 — Mon, 15 May 2023 01:28:53 GMT

Hi Ibendlin, Thank you for your reply. I am not exactly sure how to do that. Are you able to clarify? thank you.

Re: DAX to Lookup Values in Another Column and Subtract to Achieve Remaining Columns

Anonymous — Mon, 22 May 2023 07:42:24 GMT

Hi powerbiuser1000 ,

Dax's text functions are not very good at solving such problems.

Remaining Sites = VAR _TEXT = SUBSTITUTE ( [Sites], CONCATENATEX ( FILTER ( ALL ( 'Table' ), 'Table'[Ship] = EARLIER ( 'Table'[Ship] ) ), 'Table'[Area], "," ), "" ) VAR _RESULT = SWITCH( TRUE(), LEFT(_TEXT,1)=",",MID(_TEXT,2,LEN(_TEXT)-1), RIGHT(_TEXT,1)=",",MID(_TEXT,2,LEN(_TEXT)-1) ) RETURN _RESULT

This may only be appropriate for sample data. I'm guessing that [Sites] and [Areas] are probably calculated columns, so please consider refactoring them in the PowerQuery Editor to make the question much simpler.

Best Regards,
Gao
Community Support Team

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Re: DAX to Lookup Values in Another Column and Subtract to Achieve Remaining Columns

powerbiuser1000 — Mon, 22 May 2023 07:53:19 GMT

Thank you, this is exactly what I am after! Cheers