Min Max and average with count in dax

[Anonymous]

Hi 

I am struggling with min max and avg in Power BI using DAX.

I have the following table.

 Student        Subject
st1                  math

st1                  eng

st1                  phy

st2                  phy

st2                  math

st2                  eng

st2                  bio

st2                  che

st2                  comp

st3                  eng

st3                  math

st1                  comp

st3                  comp

st2                  history

I want to cont subjects by each student and then I want to apply min max and avg on students.

Let say

Student  SubjectCount

st1           4

st2           7

st3           3

My desired results should be

Max_student_subject
st2 = 7
Min_student subject

st3 = 3

Thanks in Advance

[v-yulgu-msft · Accepted solution]

Hi @Anonymous,

Please refer to below measures:

count sub = COUNT(Data[Subject]) 

Min = RANKX(ALLSELECTED(Data[Student]),[count sub],,ASC,Dense)
Max = RANKX(ALLSELECTED(Data[Student]),[count sub],,DESC,Dense)
average = AVERAGEX(ALLSELECTED(Data),[count sub])

You need two table visuals and a card visual to display each Min, Max and Average value. You should apply visual level filters to table visuals.

Best regards,

Yuliana Gu

[Anonymous]

Hi v_yulgu-msft,

thanks for your reply.

Your solution is working fine but I have one issue regarding slicer filtering. If I use "ALLSELECTED" then my slicer filters are not working any more regarding this calculation.

Can you please help me regarding this.

Regards,

Asif

[MFelix]

Hi  @Anonymous,

Create the following measures:

Count Students = COUNT(Students[Student ])

Max students = MAXX(ALLSELECTED(Students[Student ]);[Count Students])

Min students = MINX(ALLSELECTED(Students[Student ]);[Count Students])

Average students = AVERAGEX(ALLSELECTED(Students[Student ]);[Count Students])

Be aware that this is making the selection of the selected students, if you want that your measure to be overall the full dataset no matter the selection of students change the ALLSELECTED to ALL.

Regards,

MFelix

[Anonymous]

Hi MFelix,

thanks for your reply.

I have applied your method and I am getting these rows back.

But I want single row e.g

st3 = 3

Regards,