How to display rows that have more than two Column Row values in common with Power Bi Dax?

Question

I have table called ‘Marks’, there are columns named ‘ChildId’,’Test1′, ‘Test2’, ‘Test3’ and onwards.
My goal is to make a new column only identifying if the child Failed or Passed the semester. where a child will fail a semester if he/she failed more than 2 tests.

For example if the the child nr.5 failed only Test 1 but pass the rest then that new column value will show pass. But where child nr.6 failed Test 1, test 2 and test 3 so his new column value at the end will show Failed.

Here is my idea in python pseudo, I would like to convert this to Power Bi Dax but not sure how that would look. Any help would be appreciated.


            var = count(test1==Failed or test2==Failed or .... testn==Failed)
               if var >= 2:
                  markval = Failed
               else:
                  markval= Pass

Asked By: Will

||

Source

Answer 1

Boolean values like Marks[Test1] = "Failed" are evaluated to 0/1, so you could use simple sum, e.g.

Column = IF(
    (Marks[Test1] = "Failed") + (Marks[Test2] = "Failed") + (Marks[Test3] = "Failed") >= 2, 
    "Failed", 
    "Passed"
)

Answered By: Stachu

Answer 2

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMlTSUXJLzMxJTQEyAhKLizEoVNlYnWglI2RRYhhwncZYbCOoLxYA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [ChildID = _t, Test1 = _t, Test2 = _t, Test3 = _t, Test4 = _t, Test5 = _t, Test6 = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"ChildID", Int64.Type}, {"Test1", type text}, {"Test2", type text}, {"Test3", type text}, {"Test4", type text}, {"Test5", type text}, {"Test6", type text}}),
    #"Unpivoted Other Columns" = Table.UnpivotOtherColumns(#"Changed Type", {"ChildID"}, "Attribute", "Value"),
    #"Grouped Rows" = Table.Group(#"Unpivoted Other Columns", {"ChildID", "Value"}, {{"Count", each Table.RowCount(_), Int64.Type}}),
    #"Filtered Rows" = Table.SelectRows(#"Grouped Rows", each [Count] >= 2 and [Value] = "Pass")
in
    #"Filtered Rows"

Answered By: Umut K

Answer 3

You can also check this calculated column: If some students fails more than 2 tests, and there is 3 tests, then only combination leading to "failed state" is ‘Fail-Fail-Fail’. Employing this concept, we can write this DAX Code:

Let’s say we have a table like this:

Judgement =
IF (
    [Test1] & "-" & [Test2] & "-" & [Test3] = "Fail-Fail-Fail",
    "Fail",
    "Pass"
)

Then if we test our code, result It produces:

Answered By: Ozan Sen

How to display rows that have more than two Column Row values in common with Power Bi Dax?

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