MySQL Math - Is it possible to calculate a correlation in a query?
- by John M
In a MySQL (5.1) database table there is data that represents:
how long a user takes to perform a task and
how many items the user handled during the task.
Would MySQL support correlating the data or do I need to use PHP/C# to calcuate?
Where would I find a good formula to calculate correlation (it's been a long time since I last did this)?