28 lines
841 B
Plaintext
28 lines
841 B
Plaintext
[discrete]
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[[esql-mv_median]]
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=== `MV_MEDIAN`
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Converts a multivalued field into a single valued field containing the median value. For example:
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[source.merge.styled,esql]
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----
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include::{esql-specs}/math.csv-spec[tag=mv_median]
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----
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[%header.monospaced.styled,format=dsv,separator=|]
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|===
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include::{esql-specs}/math.csv-spec[tag=mv_median-result]
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|===
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It can be used by any numeric field type and returns a value of the same type. If the
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row has an even number of values for a column the result will be the average of the
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middle two entries. If the field is not floating point then the average rounds *down*:
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[source.merge.styled,esql]
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----
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include::{esql-specs}/math.csv-spec[tag=mv_median_round_down]
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----
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[%header.monospaced.styled,format=dsv,separator=|]
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|===
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include::{esql-specs}/math.csv-spec[tag=mv_median_round_down-result]
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|===
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