window function

English

Noun

window function (plural window functions)

  1. (databases) A function that performs a calculation using values from several rows, but does not group them into a single row.
    Synonym: analytic function
    Coordinate term: aggregate function
  2. (signal processing, statistics) A function that limits a signal to a restricted portion of time or frequencies.
    Hyponym: boxcar function

Further reading
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