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DOCAPI-7460: Added link to algorithm.

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BayoNet 2019-07-31 08:55:10 +03:00
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docs/en/query_language/agg_functions/parametric_functions.md
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@ -10,6 +10,8 @@ Calculates a histogram.
histogram(number_of_bins)(values)
```
The functions uses [A Streaming Parallel Decision Tree Algorithm](http://jmlr.org/papers/volume11/ben-haim10a/ben-haim10a.pdf). It calculates the borders of histogram bins automatically, and in common case the widths of bins are not equal.
**Parameters**
`number_of_bins` — Number of bins for the histogram.