class Avg(expression, output_field=FloatField(), **extra) [source]
Returns the mean value of the given expression, which must be numeric unless you specify a different output_field.
- Default alias:
<field>__avg - Return type:
float(or the type of whateveroutput_fieldis specified)
Changed in Django 1.9:
The output_field parameter was added to allow aggregating over non-numeric columns, such as DurationField.
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