quantileDeterministic

This function applies reservoir sampling with a reservoir size up to 8192 and deterministic algorithm of sampling. The result is deterministic. To get an exact quantile, use the function.

When using multiple functions with different levels in a query, the internal states are not combined (that is, the query works less efficiently than it could). In this case, use the quantiles function.

Syntax

Parameters

• level — Level of quantile. Optional parameter. Constant floating-point number from 0 to 1. We recommend using a value in the range of [0.01, 0.99]. Default value: 0.5. At level=0.5 the function calculates .
• — Expression over the column values resulting in numeric data types, or DateTime.

Returned value

• Approximate quantile of the specified level.

Type:

• for numeric data type input.
• DateTime if input values have the type.

Input table:

Query:

Result: