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Elasticsearch.Net and NEST: the .NET clients [2.x] » Aggregations » Extended Stats Aggregation Usage
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Extended Stats Aggregation Usageedit

Fluent DSL Exampleedit

s => s
.Aggregations(a => a
    .ExtendedStats("commit_stats", es => es
        .Field(p => p.NumberOfCommits)
    )
)

Object Initializer Syntax Exampleedit

new SearchRequest<Project>
{
    Aggregations = new ExtendedStatsAggregation("commit_stats", Field<Project>(p => p.NumberOfCommits))
}

Example json output.  

{
  "aggs": {
    "commit_stats": {
      "extended_stats": {
        "field": "numberOfCommits"
      }
    }
  }
}

Handling Responsesedit

response.ShouldBeValid();
var commitStats = response.Aggs.ExtendedStats("commit_stats");
commitStats.Should().NotBeNull();
commitStats.Average.Should().BeGreaterThan(0);
commitStats.Max.Should().BeGreaterThan(0);
commitStats.Min.Should().BeGreaterThan(0);
commitStats.Count.Should().BeGreaterThan(0);
commitStats.Sum.Should().BeGreaterThan(0);
commitStats.SumOfSquares.Should().BeGreaterThan(0);
commitStats.StdDeviation.Should().BeGreaterThan(0);
commitStats.StdDeviationBounds.Should().NotBeNull();
commitStats.StdDeviationBounds.Upper.Should().BeGreaterThan(0);
commitStats.StdDeviationBounds.Lower.Should().NotBe(0);
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