I all, I am looking fo some guidance on best practice.
I am creating a student dashboard. I have a big data table that contains data from an annual student test covering multiple years. I can select a student via basic slicer and diplay current subjects and the series of annual scores.
However I need to show student performance in the context of the other students for that year either as a box or violin plot (ie. Year 5 student vs all Year 5 students in 2013, Year 6 student vs all year 6 students in 2014 etc). The slicer reduces the data set to just the student so the box/violin ends up with one data point.
I can easily create an alternate table using SQL but it seems so wrong to not do this in PBI. What would be the best practice approach? I just need a pointer and can run with it from there.
Thanks in advance.
Solved! Go to Solution.
Hey @lutho
As @amitchandak mentioned it would be best to have some sample data and a sample output to answer this question.
Without this, here is some sample data I have included to try and meet your solution
Also I've gone ahead and duplicate this table in the query editor and paried it down just to unique Student-Year combinations
The tables are connected by year and one filters the other in a one way many to many relationship
Now we can write a measure like this
Students From Same Year as Selected =
var TheStudent = VALUES('Test Data (2)'[Student])
var TheYear = CALCULATE(MAX('Test Data'[Year]), 'Test Data'[Student] in TheStudent)
return
CALCULATE(MAX('Test Data'[Score]), 'Test Data'[Year] = TheYear)
This will allow us to make a violin chart that will adjust based on the year of our selected student
If you wanted to also see the selected student's score you could add a card with this measure
Student Score =
var TheSelectedStudent = SELECTEDVALUE('Test Data (2)'[Student])
return
CALCULATE(MAX('Test Data'[Score]), 'Test Data'[Student] = TheSelectedStudent)
Let me know if this helps or if you were looking for different functionality.
Hey @lutho
As @amitchandak mentioned it would be best to have some sample data and a sample output to answer this question.
Without this, here is some sample data I have included to try and meet your solution
Also I've gone ahead and duplicate this table in the query editor and paried it down just to unique Student-Year combinations
The tables are connected by year and one filters the other in a one way many to many relationship
Now we can write a measure like this
Students From Same Year as Selected =
var TheStudent = VALUES('Test Data (2)'[Student])
var TheYear = CALCULATE(MAX('Test Data'[Year]), 'Test Data'[Student] in TheStudent)
return
CALCULATE(MAX('Test Data'[Score]), 'Test Data'[Year] = TheYear)
This will allow us to make a violin chart that will adjust based on the year of our selected student
If you wanted to also see the selected student's score you could add a card with this measure
Student Score =
var TheSelectedStudent = SELECTEDVALUE('Test Data (2)'[Student])
return
CALCULATE(MAX('Test Data'[Score]), 'Test Data'[Student] = TheSelectedStudent)
Let me know if this helps or if you were looking for different functionality.
@lutho ,Can you share sample data and sample output in table format? Or a sample pbix after removing sensitive data.
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