# \#examples

**URL:** https://swi-prolog.discourse.group/tag/examples/67.md

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## [Group\_by/4 examples](https://swi-prolog.discourse.group/t/group-by-4-examples/2678)

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**Author:** [@EricGT](https://swi-prolog.discourse.group/u/EricGT)\
**Replies:** 0\
**Last updated:** [July 22, 2020, 11:10am UTC](https://swi-prolog.discourse.group/t/group-by-4-examples/2678 "2020-07-22T11:10:37Z")

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Here are some examples for group\_by/4 from library(solution\_sequences) as test cases. :- begin\_tests(group\_by). % run\_tests(group\_by). data(c1, a2, b3). data(a1, c2, c3). data(b1, b2, a3). data(a1, a2, a3). data(a1, c…

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## [Order\_by/2 examples](https://swi-prolog.discourse.group/t/order-by-2-examples/2667)

<div class="topic-metadata">

**Author:** [@EricGT](https://swi-prolog.discourse.group/u/EricGT)\
**Replies:** 0\
**Last updated:** [July 21, 2020, 1:41pm UTC](https://swi-prolog.discourse.group/t/order-by-2-examples/2667 "2020-07-21T13:41:16Z")

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Here are some examples for order\_by/2 from library(solution\_sequences) as test cases. :- begin\_tests(order\_by). % run\_tests(order\_by). data(0, 1, 1). data(1, 0, 0). data(0, 0, 0). data(1, 1, 0). data(1, 0, 1). data(0,…