Grade up: Difference between revisions
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#redirect [[grade]] |
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{{primitive|<x}} |
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The '''grade up''' primitive is used to get the indices of an array that would sort it in ascending order. |
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Since grading is not the same as sorting, a general idiom used to sort arrays is <code>{x(<x)}</code> or other equivalent. |
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Grade primitives generally use a [https://en.wikipedia.org/wiki/Category:Stable_sorts stable sort], which means that an ascending grade may not always be the inverse of a descending grade. |
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For numeric arrays: |
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<pre> |
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<34 -1 0 67 32767 |
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1 2 0 3 4</pre> |
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Grading of string arrays largely depends upon the implementation. |
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For ngn/k(K6), groups by type and sorts each individual group: |
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<pre> |
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{x(<x)}("xyz";"a";"k";"j";"apl";"bqn") |
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("apl" |
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"bqn" |
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"xyz" |
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"a" |
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"j" |
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"k") |
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</pre> |
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Revision as of 17:01, 14 July 2021
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