aggregate_avg
The functionaggregate_avg(str agg_name, str fieldname)
returns the average of the field "fieldname" over all documents that passed the relevant filtering.
The aggregation result will be stored under the query results objects, under a key named "agg_name"
.
Input
agg_name(str) - Specifies the key that will be used to store the aggregation result under the query result.
fieldname(str) - The name of the field to aggregate. params[fieldname]must be of type float or int.
Example:
def score_function_recommendation( params, doc):
score = 0.0
if match('genres'):
aggregate_avg ("avg_budget_genres", "budget")
if match('languages'):
aggregate_avg ("avg_budget", "budget")
score += rarity_avg('genres')
return score
In the above example, the query results will include a key name 'aggregations', containing the following sub keys:
"avg_budget_genres" - the average of the field “budget” over all candidates that passed the filter over genres.
"avgg_budget" - the average of the field “budget” over all candidates that passed the filters over genres and languages.
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