Flowdock
method

average

Importance_1
v2.3.2 - Show latest stable - 0 notes - Class: ActiveRecord::Calculations::ClassMethods
average(column_name, options = {}) public

Calculates the average value on a given column. The value is returned as a float, or nil if there’s no row. See calculate for examples with options.

  Person.average('age') # => 35.8
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