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cts.percentile( arg as Number[], p as Number[] ) as Sequence

Returns a sequence of percentile(s) given a sequence of percentage(s).
This function works like `math:percentile`

except each item in
the sequence is repeated `cts:frequency`

times before calculating
the percentile(s). The function returns the empty sequence if either $arg
or $p is the empty sequence.

Parameters | |
---|---|

arg | The sequence of values. The values should be the result of a lexicon lookup. |

p | The sequence of percentage(s). |

This function is designed to take a sequence of values returned
by a lexicon function (for example, `cts:element-values`

); if you
input non-lexicon values, the result will be the empty sequence.

// This query assumes an element range index of type 'int' // is configured for the 'int' element in the database. It // generates some sample data and then performs the aggregation // in a separate transaction. declareUpdate(); for (x=1; x < 11; x++) { var obj = new Object(); for (y=0; y < x; y++){ {obj.int = y}; }; xdmp.documentInsert(fn.concat(x, ".json"), obj);} // After creating the above document, run the following: // cts.percentile( cts.values([cts.jsonPropertyReference("int", ["type=int"])]), [0.25,0.5,0.75]) => 1.5 4.5 7.5

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