I have a student average marks information and I am working on performing some statistical things to find out the significance of the student vs overall score. Below is the screenshot of my data and I have also attached the data for reference.
I am able to get the overall window average using the tableau's WINDOW_AVG function however I want to exclude the current row from being considered in the average.
For example, when I am calculating the overall average of student 7210, I must leave the 7210 student's Avg (83.320754717) and use the remaining student average for the overall average calculation. Similarly, when calculating for 7211, I must leave the student avg (77.75806452) from being calculated in the overall.
I have attached the data for reference in this link.
Can anyone let me know how to proceed with this calculation?