I'm building an activity where each entry will be rated. Per entry I have four ratings. Each rating is given by a different role and rated by any number of people. With rate1:avg I can show the average of all given ratings on a rating. Now I'm looking to get the average of averages on the entry.
rate:avg // gives the average of all given ratings on a field. I can't calculate with this.
rate:rating // gives the numerical value of the current users' rating. I can calculate with this.
What should I use to get the numerical value of the average of ratings so I can do this?