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@@ -14,7 +14,8 @@ To make this more formal, here is the rounding function that is used:
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bucket_key = Math.floor((value - offset) / interval) * interval + offset
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--------------------------------------------------
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-The `interval` must be a positive decimal, while the `offset` must be a decimal in `[0, interval[`.
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+The `interval` must be a positive decimal, while the `offset` must be a decimal in `[0, interval)`
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+(a decimal greater than or equal to `0` and less than `interval`)
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The following snippet "buckets" the products based on their `price` by interval of `50`:
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@@ -73,7 +74,7 @@ And the following may be the response:
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==== Minimum document count
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-The response above show that no documents has a price that falls within the range of `[100 - 150)`. By default the
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+The response above show that no documents has a price that falls within the range of `[100, 150)`. By default the
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response will fill gaps in the histogram with empty buckets. It is possible change that and request buckets with
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a higher minimum count thanks to the `min_doc_count` setting:
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@@ -185,10 +186,10 @@ the `order` setting. Supports the same `order` functionality as the <<search-agg
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==== Offset
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By default the bucket keys start with 0 and then continue in even spaced steps of `interval`, e.g. if the interval is 10 the first buckets
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-(assuming there is data inside them) will be [0 - 9], [10-19], [20-29]. The bucket boundaries can be shifted by using the `offset` option.
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+(assuming there is data inside them) will be `[0, 10)`, `[10, 20)`, `[20, 30)`. The bucket boundaries can be shifted by using the `offset` option.
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This can be best illustrated with an example. If there are 10 documents with values ranging from 5 to 14, using interval `10` will result in
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-two buckets with 5 documents each. If an additional offset `5` is used, there will be only one single bucket [5-14] containing all the 10
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+two buckets with 5 documents each. If an additional offset `5` is used, there will be only one single bucket `[5, 15)` containing all the 10
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documents.
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==== Response Format
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