math.rank

math.rankmathrank

/apidoc/8.0/math:rank.xml

Returns the rank of a value in a data set. Ranks are skipped in the event of ties. If the given value is not equal to any item in the sequence, the function returns the empty sequence. The function can be used on numeric values, xs:yearMonthDuration, xs:dayTimeDuration, xs:string, xs:anyURI, xs:date, xs:dateTime, xs:time, and cts:point.

The sequence of values.

arg

(String | Number | Boolean | null)[]

The value to be "ranked".

arg

xs.anyAtomicType

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.

options

String[]

Number?

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

  => 5