Custom sort?

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Custom sort?

01-22-2019, 04:23 PM

Post: #8

John Keith

Senior Member

Posts: 1,040
Joined: Dec 2013

RE: Custom sort?

(01-21-2019 03:05 AM)Albert Chan Wrote: Another way is Schwartian transformed sort.
For above case, assuming 1-based indexing, in X-Cas:

m := [[1,2], [2,2.5], [3,1.5]]
reverse(swapcol(sort(swapcol(m, 1,2)), 1,2)) --> [[2,2.5], [1,2], [3,1.5]]

Interesting. I have been using that method for years but never new it had a name.

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Messages In This Thread

Custom sort? - EricR - 01-20-2019, 06:09 PM

RE: Custom sort? - pier4r - 01-20-2019, 06:50 PM

RE: Custom sort? - Didier Lachieze - 01-20-2019, 08:20 PM

RE: Custom sort? - DrD - 01-20-2019, 09:13 PM

RE: Custom sort? - Didier Lachieze - 01-20-2019, 11:38 PM

RE: Custom sort? - Albert Chan - 01-21-2019, 03:05 AM

RE: Custom sort? - John Keith - 01-22-2019 04:23 PM

RE: Custom sort? - Albert Chan - 01-22-2019, 05:34 PM

RE: Custom sort? - DrD - 01-21-2019, 10:56 AM

RE: Custom sort? - informach - 01-22-2019, 06:54 PM

RE: Custom sort? - StephenG1CMZ - 01-23-2019, 01:53 PM

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