DAX needed

[sravani9920]

Hello Guys,
I have provided the sample data for you, Here status column is the Result column for my requirement, student should be passed in all the tests then only status should be pass, If any student fail in one test also status will be fail,
I need to present the data in PIE chart like number of test failed and passed.
Please any one help me on this,
Thank you in advance.

number 

Name	test	Pass/fail	status
sravani	test1	Pass	fail
sravani	test2	Pass	fail
sravani	test3	fail	fail
srinu	test1	Pass	pass
srinu	test2	Pass	pass
siri	test1	Pass	pass
siri	test2	Pass	pass
siri	test3	Pass	pass
mokshu	test1	fail	fail
mokshu	test2	pass	fail
mokshu	test3	pass	fail
mokshu	test4	pass	fail

[MFelix]

Hi @sravani9920 ,

Believe you can use one of this options:
Powern Query:
Making use of the current query

• Uppercase the fail/pass (to avoid errors on next steps)

• Group by Name and with MIN Pass/Fail Column

• Merge the query with itself

• Change on the Merge Step the first table by the last step befor the uppercase (in my example was the source step)

• Expand the column status

Column using DAX:
Create the following column:

Status DAX = 
VAR temptable = FILTER(
		SUMMARIZE(
			ALL(Grades),
			Grades[Name],
			Grades[Pass/fail]
		),
		Grades[Name] = EARLIER(Grades[Name])
	)
	RETURN
		MINX(
			temptable,
			Grades[Pass/fail]
		)

Use a disconnected table and measure:

• Create a table with the Pass/Fail values
• Add the following measure:

Status per student = VAR temptable = SUMMARIZE(
			Grades,
			Grades[Name],
			"@status", MIN(Grades[Pass/fail])
		)
		RETURN
			COUNTROWS(FILTER(
				temptable,
				[@status] IN VALUES('Status'[Status])
			))

Pbix file attach

[sravani9920]

Helli MFelix,

It worked well for me but need to extend the DAX calcultaed formula as sravani student in class 2 then the status should be Pass for class 2 as all the tests passed in class2 and same person is failed in class 1 so status for should be failed,
Please help me out by extending the Dax calcultaed formula,

Thank you 🙂

[MFelix · Accepted solution]

Hi @sravani9920 ,

You need to add the class on your solution:
Power Query:

• Class must be added to the Group By and Merged queries steps:

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WKi5KLEvMy1TSUSpJLS4xBNIBicXFQMpQKVYHXdoIv7QxkE5LzMxBks7MK8U02hhD0ghDMrMIt5sQcpgOQsgZo8vl5mcXZyA7B8WtKLIgcwtw6jXGK2uCLosziI3wBzFQOhYA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Name = _t, #"test " = _t, #"Pass/fail" = _t, Class = _t]),
    #"Uppercased Text" = Table.TransformColumns(Source,{{"Pass/fail", Text.Upper, type text}}),
    #"Grouped Rows" = Table.Group(#"Uppercased Text", {"Name", "Class"}, {{"Status", each List.Min([#"Pass/fail"]), type text}}),
    #"Merged Queries" = Table.NestedJoin(Source, {"Name","Class"}, #"Grouped Rows", {"Name", "Class"}, "Grouped Rows", JoinKind.LeftOuter),
    #"Expanded Grouped Rows" = Table.ExpandTableColumn(#"Merged Queries", "Grouped Rows", {"Status"}, {"Status"})
in
    #"Expanded Grouped Rows"

Calculated column:

Status DAX = 
VAR temptable = FILTER(
		SUMMARIZE(
			ALL(Grades),
			Grades[Name],
            Grades[Class],
			Grades[Pass/fail]
		),
		Grades[Name] = EARLIER(Grades[Name]) &&
        Grades[Class] = EARLIER(Grades[Class])
	)
	RETURN
		MINX(
			temptable,
			Grades[Pass/fail]
		)

Dax measure:

Status per student = VAR temptable = SUMMARIZE(
			Grades,
			Grades[Name],
            Grades[Class],
			"@status", MIN(Grades[Pass/fail])
		)
		RETURN
			COUNTROWS(FILTER(
				temptable,
				[@status] IN VALUES('Status'[Status])
			))

File attach

[sravani9920]

Thank You so much Dear, It works🙂

[PhilipTreacy]

Hi @sravani9920 

Download PBIX file with the examples below

This measure will give you the Status column as shown  in your example

Status = IF(CALCULATE(COUNTROWS('DataTable'), FILTER(ALL('DataTable'), 'DataTable'[Name] = SELECTEDVALUE('DataTable'[Name]) && 'DataTable'[Pass/fail] = "fail")), "Fail", "Pass")

These measures will give you the number of tests passed and failed by each person

Tests Passed = CALCULATE(COUNTROWS('DataTable'), FILTER(('DataTable'), 'DataTable'[Name] = SELECTEDVALUE('DataTable'[Name]) && 'DataTable'[Pass/fail] = "pass"))

Tests Failed = CALCULATE(COUNTROWS('DataTable'), FILTER(('DataTable'), 'DataTable'[Name] = SELECTEDVALUE('DataTable'[Name]) && 'DataTable'[Pass/fail] = "fail"))

I don't think a pie chart is the best visual for this data, how exactly do you expect it to look?  Segments are coloured by the candidate, so both pased and failed tests are the same colour for each person.  

A column chart would be better

Regards

Phil