MarkLogic 9 Product Documentation
math.percentRank

math.percentRank(
   arg as (String | Number | Boolean | null | Array | Object)[],
   value as xs.anyAtomicType,
   [options as String[]]
) as Number?

Summary

Returns the rank of a value in a data set as a percentage of the data set. If the given value is not equal to any item in the sequence, the function returns the empty sequence. See math:rank.

Parameters
arg	The sequence of values.
value	The value to be "ranked".
options	Options. The default is (). Options include: "ascending"(default) Rank the value as if the sequence was sorted in ascending order. "descending" Rank the value as if the sequence was sorted in descending order. "collation=URI" Applies only when $arg is of the xs:string type. If no specified, the default collation is used. "coordinate-system=name" Applies only when $arg is of the cts:point type. If no specified, the default coordinate system is used.

Parameters

arg

The sequence of values.

value

The value to be "ranked".

options

Options. The default is ().

Options include:

"ascending"(default)

Rank the value as if the sequence was sorted in ascending order.

"descending"

Rank the value as if the sequence was sorted in descending order.

"collation=URI"

Applies only when $arg is of the xs:string type. If no specified, the default collation is used.

"coordinate-system=name"

Applies only when $arg is of the cts:point type. If no specified, the default coordinate system is used.

Example

  math.percentRank([1, 7, 5, 5, 10, 9],9)

  => 0.833333333333333

MarkLogic 9 Product Documentationmath.percentRank

Summary

Example

MarkLogic 9 Product Documentation
math.percentRank