# Percentile Ranks Aggregation > More info about percentile ranks aggregation is in the [official elasticsearch docs][1] A multi-value metrics aggregation that calculates one or more percentile ranks over numeric values extracted from the aggregated documents. ## Simple example ```JSON { "aggregations" : { "agg_load_time_outlier" : { "percentile_ranks" : { "field" : "load_time", "values" : [15, 30] } } } } ``` And now the query via DSL: ```php $percentileRanksAggregation = new PercentileRanksAggregation('load_time_outlier', 'load_time', [15, 30]); $search = new Search(); $search->addAggregation($percentileRanksAggregation); $queryArray = $search->toArray(); ``` [1]: https://www.elastic.co/guide/en/elasticsearch/reference/current/search-aggregations-metrics-percentile-rank-aggregation.html