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Helper IV

## How to use the CASE statement in Power BI?

Hi,

1) How do I convert the below CASE statement to DAX in Power BI?

case when cCount > 0 and ThreeYrAvg > 0
then
case
when cCount - ThreeYrAvg >= 5
and round( ( ( cCount * 1.00 - ThreeYrAvg ) / ThreeYrAvg) * 100, 2 ) >= 10.00
then 'Increase'
when cCount - ThreeYrAvg <= -5
and round( ( ( cCount * 1.00 - ThreeYrAvg ) / ThreeYrAvg ) * 100, 2 ) <= -10.00
then 'Decrease'
else 'None' end
else 'None'
end "Notable Change?",

Column 1 = cCount

Column 2 = ThreeYrAvg from Table A.

I want to create a calculated 'Column' named = "Notable Change?" which will have Increase, Decrease and None values in the new column (from the CASE statement).

2) and then a calculated 'Measure'. Calculated 'Measure' should show just the record count of "Increase and Decrease" which I then show it using a 'Card' visualization.

Do I need to use 'Switch' DAX expression?

1 ACCEPTED SOLUTION
Anonymous
Not applicable

HI @BBIUser,

I've created a sample data and used custom column to use -IF-ELSE-IF statements to get the result you need as shown below in images.

--------------------------------------------------------------

---------------------------------------------------------

Let me know if any doubt persists.

Thanks and Regards,

Piyush

5 REPLIES 5
New Member

hi i want to do a case statement in powerbi that is coming from a culculated measure in Power bi , how do i do this

Numbers% = sum(Query1[NuberPas])/sum(Query1[AllAssessed]) > this is the calculated measure but i want to do a calculated measure with this calculation

New Calculated meature from top 1
Case when Numbers% = 100 then 1 else 0 end as NumberPositive

thanking you in advance

Anonymous
Not applicable

HI @BBIUser,

I've created a sample data and used custom column to use -IF-ELSE-IF statements to get the result you need as shown below in images.

--------------------------------------------------------------

---------------------------------------------------------

Let me know if any doubt persists.

Thanks and Regards,

Piyush

Helper IV

Thanks @Anonymous! It works.

Since I am new to Power BI and only trying out POCs, it is good to know that there is an option 'Custom Column'.

But can I know in what scenarios the 'custom column' and 'calculated column' should be used?

Thanks again!

Super User

Yes, SWITCH funtion is your equivalent or nested IF statements. Give me some sample data to play with and can be more specific. Please see this post regarding How to Get Your Question Answered Quickly: https://community.powerbi.com/t5/Community-Blog/How-to-Get-Your-Question-Answered-Quickly/ba-p/38490

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Helper IV

@Greg_Deckler My apologizes if my question was not clear and for not posting the sample data.

Here is the sample data.

Here cCount is "Current Year",
pCount is "Prior Year",
p1Count is "Current Year-2",
p2Count is "CurrentYear-3"

ThreeYrAvg is "3 Year Avg"

With the CASE statement I want to add another calculated column and a measure. Please let me know if it is more clear with the sample data. Thanks for your help!