Fill element: Difference between revisions
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Miraheze>Marshall (Created page with "A '''fill element''' is an element used for the result of a function when no element from the argument or another relevant array is used. The fill element is usual...") |
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Fills are one way to convert an [[empty array]] into a non-empty array. [[Reduction]] along an empty [[axis]] also produces such a transition, but in this case an [[identity element]] for the reducing function is used instead of a fill. | Fills are one way to convert an [[empty array]] into a non-empty array. [[Reduction]] along an empty [[axis]] also produces such a transition, but in this case an [[identity element]] for the reducing function is used instead of a fill. | ||
== Uses == | |||
The following functions and operators may use fill elements in their results. | The following functions and operators may use fill elements in their results. | ||
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In languages with [[function rank]], fills are similarly used to force result cells of a function with rank to have a uniform [[shape]]. This means that fills may be used by any primitive function which can produce differently-shaped result cells in a single application. A notable example is [[Unbox]], which behaves like the nested Mix because of this feature of function rank. | In languages with [[function rank]], fills are similarly used to force result cells of a function with rank to have a uniform [[shape]]. This means that fills may be used by any primitive function which can produce differently-shaped result cells in a single application. A notable example is [[Unbox]], which behaves like the nested Mix because of this feature of function rank. | ||
== External links == | |||
=== Documentation === | |||
* [http://help.dyalog.com/latest/index.htm#Language/Primitive%20Functions/Fill%20Elements.htm Dyalog] | |||