Need help with DAX formula

[InsightSeeker]

I need help to achieve the results shown in the table below.

Essentially, in the 'Category' column, if all the values are the same, then return the first value; otherwise, return 'Mix'.

Table

Category

Apple-Apple

Apple-Grapes

Apple

Grapes-Grapes

Grapes-Apple-Apple-Grapes

Grapes

Result

Category	Result
Apple-Apple	Apple
Apple-Grapes	Mix
Apple	Apple
Grapes-Grapes	Grapes
Grapes-Apple-Apple-Grapes	Mix
Grapes	Grapes

[ThxAlot]

Why bother to use DAX? PQ does the trick very well.

[AnalyticsWizard]

@InsightSeeker 

To handle the task in Power BI where you need to check if all values in a 'Category' column are the same or mixed, you can use a DAX formula to create a calculated column. Here’s a simplified approach:

Result =
VAR SplitValues = PATHITEMS(SUBSTITUTE([Category], "-", "|"), "|")
VAR UniqueValues = DISTINCT(SplitValues)
RETURN
IF(COUNTROWS(UniqueValues) = 1, MAX(SplitValues), "Mix")

1. In Power BI Desktop, go to your data model and add a new calculated column.
2. Paste the formula in the formula bar.
3.  The new column will now categorize each entry as either the single fruit name if all components are the same, or "Mix" if they differ.

This formula splits each 'Category' entry into its components, checks for uniqueness, and categorizes them accordingly. Adjust the delimiter in the `SUBSTITUTE` function if it differs.

If this explanation helps, please consider marking it as the solution to help others in the community.
Appreciate your Kudo 👍

[InsightSeeker]

Hi @AnalyticsWizard  - I dont see the condition PATHITEMS in my BI desktop is there any other condition i can use?

[v-jingzhan-msft]

Hi @InsightSeeker 

As @ThxAlot suggested, using Power Query to get the expected result will be easier. Otherwise if you have interest in a DAX solution, you can try below formula to add a calculated column into the current table. 

Column = 
VAR string = SUBSTITUTE([Category], "-", "|")
VAR len = PATHLENGTH(string)
VAR splitCategories = 
    ADDCOLUMNS(
        GENERATESERIES( 1, len),
        "mylist", PATHITEM( string, [Value] ) 
    )
VAR Categories = SUMMARIZE(splitCategories,[mylist])
RETURN
IF( COUNTROWS(Categories) = 1, MAXX(Categories,[mylist]), "Mix")

Thanks to the solution from DAX how split a string by delimiter into a list or... - Microsoft Fabric Community

Best Regards,
Jing
If this post helps, please Accept it as Solution to help other members find it. Appreciate your Kudos!

[InsightSeeker]

Hello @v-jingzhan-msft - I am getting the below error when using this DAX

The arguments in GenerateSeries function cannot be blank.

[v-jingzhan-msft]

I have attached a sample pbix. Hope it would be helpful. 

Do you have any rows that may have blank or empty values in the Category column? This may cause this error. 

[InsightSeeker]

Hi @v-jingzhan-msft  - yes i do have some cells which does not have any values, how can i handle this?

[v-jingzhan-msft]

@InsightSeeker Can you show how those data looks like? 

I made a test with blank and "-" in cells but the previous formula works for both. Those rows display blank in the column without any error. 

I did some more test and found that the error you met is probably caused by the len argument in GENERATESERIES function. If it is blank, the error happens. So please check whether len returns correct values for all rows. You can modify the formula to return len to check the result. For example, in my below test, it should return a number on every row rather than blank. 

[qqqqqwwwweeerrr]

Hi @InsightSeeker 

Is this what your expectation

if yes this what i have used: 

Measure = IF(CONTAINSSTRING(MIN('Table'[Category]),"-") = FALSE(),MIN('Table'[Category]),"Mix")

Did I answer your question? Mark my post as a solution! Appreciate your Kudos!!
Check for more intersing solution here: https://www.youtube.com/@letssolveproblem

Regards

[InsightSeeker]

Hi @qqqqqwwwweeerrr  - I need the result in the column instead of measure

[InsightSeeker]

Hi @qqqqqwwwweeerrr  - Your result is not correct.

Below is the result i am looking for.

If all values are same then return the first value for example if the values are

Apple or

Apple-Apple or

Apple-Apple-Apple-Apple..... then return of Apple

If the values are 

Apple-Grapes or

Apple-Grapes-Grapes-Apple then return of Mix

Result

Category	Result
Apple-Apple	Apple
Apple-Grapes	Mix
Apple	Apple
Grapes-Grapes	Grapes
Grapes-Apple-Apple-Grapes	Mix
Grapes	Grapes

[Ashish_Mathur · Accepted solution]

Hi,

This calculated column formula works

Column = if(SUBSTITUTE(SUBSTITUTE(Data[Category],"-",BLANK()),LEFT(Data[Category],SEARCH("-",Data[Category],,20)-1),BLANK())="",LEFT(Data[Category],SEARCH("-",Data[Category],,20)-1),"Mix")

Hope this helps.