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Moving Average Simple Aggregation Usage
editMoving Average Simple Aggregation Usage
editFluent DSL example
edits => s
.Size(0)
.Aggregations(a => a
.DateHistogram("projects_started_per_month", dh => dh
.Field(p => p.StartedOn)
.Interval(DateInterval.Month)
.Aggregations(aa => aa
.Sum("commits", sm => sm
.Field(p => p.NumberOfCommits)
)
.MovingAverage("commits_moving_avg", mv => mv
.BucketsPath("commits")
.Window(30)
.Predict(10)
.Model(m => m
.Simple()
)
)
)
)
)
Object Initializer syntax example
editnew SearchRequest<Project>()
{
Size = 0,
Aggregations = new DateHistogramAggregation("projects_started_per_month")
{
Field = "startedOn",
Interval = DateInterval.Month,
Aggregations =
new SumAggregation("commits", "numberOfCommits") &&
new MovingAverageAggregation("commits_moving_avg", "commits")
{
Window = 30,
Predict = 10,
Model = new SimpleModel()
}
}
}
Example json output.
{
"size": 0,
"aggs": {
"projects_started_per_month": {
"date_histogram": {
"field": "startedOn",
"interval": "month"
},
"aggs": {
"commits": {
"sum": {
"field": "numberOfCommits"
}
},
"commits_moving_avg": {
"moving_avg": {
"buckets_path": "commits",
"model": "simple",
"window": 30,
"predict": 10,
"settings": {}
}
}
}
}
}
}
Handling Responses
editresponse.ShouldBeValid();
var projectsPerMonth = response.Aggs.DateHistogram("projects_started_per_month");
projectsPerMonth.Should().NotBeNull();
projectsPerMonth.Buckets.Should().NotBeNull();
projectsPerMonth.Buckets.Count.Should().BeGreaterThan(0);
// average not calculated for the first bucket
foreach (var item in projectsPerMonth.Buckets.Skip(1))
{
var movingAvg = item.Sum("commits_moving_avg");
movingAvg.Should().NotBeNull();
movingAvg.Value.Should().BeGreaterThan(0);
}