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Frequent Visitor

## How to Improve my Dax/PowerQuery by avoiding hard-coding

Hi I have a table as follows

 CustID GroupID CustType Amount Group_CustType_Concat 1 1 Intermediate 10 1Intermediate 1 1 Intermediate 20 1Intermediate 2 3 Regular 30 3Regular 2 3 Regular 40 3Regular 2 3 Regular 30 3Regular 3 2 Intermediate 20 2Intermediate 3 2 Intermediate 60 2Intermediate 4 4 Rare 40 4Rare 5 1 Rare 30 1Rare

I have concatinated GroupID and CustType to form unique combination.

I have then created what-if parameters for each CustType grouped by Group IDs as seen below.

The goal is to sum 'Amount' for each unique value in Group_CustType_Concat and then multiply it by the respective what-if parameter value. In the current Dax I am creating  measures for each unique concatination to calculate the sum of amount and then multiply it by the respective parameter value. Another measure is created to add the results of the measures and group them by CustType to form a line chart.

1Intermediate= Calculate(sum('Table'[amount]),'Table'[Group_CustType_Concat]=="1Intermediate") * '1Intermediate'[1Intermediate Value]

This is repeated for all unique Group_CustType_Concat and then added together using switch statement based on each custType.

Linechart = var type=IF(ISBLANK(SELECTEDVALUE('Table'[CustType])),TRUE,SELECTEDVALUE('Table'[CustType]))
return switch(type,
"Intermediate", [1Intermediate] + [2Intermediate] + [3Intermediate]
,"Regular", [1Regular] + [2Regular]+ [3Regular]

However, this is a very inefficient way, as there can be multiple Groups and CustTypes leading to a large number of combinations. Is there a more efficient way of doing this, so I don't have to hardcode Dax for each Group_CustType_Concat? Maybe some kind of loop that itterates through each Group_CustType_Concat and automatically calculates the sum and multiplies it by it's respective parameter? Maybe power query loop?

2 REPLIES 2
Super User

You may need to rethink your "what-if"  UX.  It is not possible to dynamically add/remove visuals in Power BI, and Small Multiples are not supported in "What-If"  scenarios.  Have you thought about using the filter panel instead?

Frequent Visitor

Hi @lbendlin ,

The user viewing the dashboard needs to be able to change the values of the what-if slicers and that should only impact the sum of 'Amount' of that specific Group_CustType_Concat. So will not be able to use the filter panel for this. Also I am not trying to add or remove visuals, just trying to multiply the value of slicer to its respective concatinated group. For example this the measure to calculate the value when user changes the value of the 'Intermediate' slicer of Group 1:

1Intermediate= Calculate(sum('Table'[amount]),'Table'[Group_CustType_Concat]=="1Intermediate") * '1Intermediate'[1Intermediate Value]

This is repeated for all unique Group_CustType_Concat and then added together using switch statement based on each custType.

Linechart = var type=IF(ISBLANK(SELECTEDVALUE('Table'[CustType])),TRUE,SELECTEDVALUE('Table'[CustType]))
return switch(type,
"Intermediate", [1Intermediate] + [2Intermediate] + [3Intermediate]
,"Regular", [1Regular] + [2Regular]+ [3Regular]

Is there a simpler, more automated way of doing this?

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