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[Octave-bug-tracker] [bug #45739] sort 'descend' together with vectors c


From: Dieter Schmidt
Subject: [Octave-bug-tracker] [bug #45739] sort 'descend' together with vectors created with the colon operator
Date: Thu, 13 Aug 2015 22:13:50 +0000
User-agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:39.0) Gecko/20100101 Firefox/39.0

Follow-up Comment #12, bug #45739 (project octave):

May this is useful: the elapsed time with 1)'sort + range' is significat lower
than 2) 'sort + matrix' or 3)'fliplr':
1)

>> clear all;tic();b=sort(1:3:1E8-1,'descend');toc()
Elapsed time is 4.70318e-008 seconds.

2)

>> clear all;tic();b=sort([1:3:1E8-1],'descend');toc()
Elapsed time is 0.296795 seconds.

3)

>> clear all;tic();b=fliplr(1:3:1E8-1);toc()
Elapsed time is 0.239199 seconds.




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  <http://savannah.gnu.org/bugs/?45739>

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