Data calculation: new mean value calculation without missing values as seperate process

A new  function in the data calculation is now allowing to calculate mean values without taking the three different missing values of a variable into account.
The syntax qf_avg(var1 , var2 , var_n) calculates the mean without the defined missing values of each variable into a defined variable.
Because of the intensity of this new function on the database server, the operation is now taking place in a background process.
The registered user will receive an email once the calculation is fully completed. In times of high server load this might take a minute or two.
We will soon integrate this function into questlogix too.