Wolfram Function Repository
Instant-use add-on functions for the Wolfram Language
Function Repository Resource:
Sort keys of an Association in the same order as another set of keys
ResourceFunction["KeySortLike"][assoc,order] sorts elements of assoc so their keys match order. | |
ResourceFunction["KeySortLike"][order] gives an operator that sorts associations like order. |
Sort an Association like a List:
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Create an operator:
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Sort some fruit:
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Associations can be used to specify the order as well. Create two associations:
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Sort the all-time Major League Baseball home run records in the order of the all time runs batted in records:
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Sort integers based on an existing List:
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Sort names according to an existing List containing only some of the keys:
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Sort names according to an existing List containing extra keys:
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Create an operator from an Association where the values are ignored:
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Apply it to data:
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Sort rows of a Dataset using the operator form:
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KeySortLike works on a Dataset which contains indexed tables (associations of associations). Get an indexed table dataset:
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Sort the planets in the order that their names appear on the Wikipedia page for Roman deities:
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KeySortLike effectively applies the resource function SortLike to the keys of an Association:
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KeySortLike fails for non-indexed datasets:
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It can work as an operator at lower levels:
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