GNU Octave - Bugs: bug #54277, trapz ignores dim argument for a...

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bug #54277: trapz ignores dim argument for a row vector

Submitter:	A.R. Burgers <arb>
Submitted:	Tue 10 Jul 2018 07:33:26 AM UTC


Category:	Octave Function	Severity:	3 - Normal
Priority:	5 - Normal	Item Group:	Incorrect Result
Status:	Fixed	Assigned to:	None
Originator Name:		Open/Closed: *	Closed
Release: *	4.4.0	Operating System: *	Any
Fixed Release:	None	Planned Release:	None

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Wed 11 Jul 2018 06:12:09 AM UTC, comment #6: Indeed matlab produces an error: >> version ans = '9.4.0.813654 (R2018a)' >> trapz ([0:0.5:2;0:0.5:2].',[1:5;1:5].',1) Error using trapz (line 62) X must be a vector.	A.R. Burgers <arb>
Tue 10 Jul 2018 10:27:40 PM UTC, comment #5: I checked in a changeset to stable that fixes this. See http://hg.savannah.gnu.org/hgweb/octave/rev/b09ff039e6ff. Marking as fixed and closing report. I'd still like to know if Matlab throws an error though.	Rik <rik5>
Tue 10 Jul 2018 09:46:37 PM UTC, comment #4: Okay, I see quite a few problems that need to be fixed. Could someone test this in Matlab? trapz ([0:0.5:2;0:0.5:2].',[1:5;1:5].',1) I think it will produce an error.	Rik <rik5>
Tue 10 Jul 2018 07:34:03 PM UTC, comment #3: Matlab 2018b prerelease: >> trapz (2, magic (3), 1) ans = 18 20 22	Philip Nienhuis <philipnienhuis>
Tue 10 Jul 2018 03:11:38 PM UTC, comment #2: Since you have access to Matlab, could you also check this syntax? trapz (2, magic (3), 1)	Rik <rik5>
Tue 10 Jul 2018 02:39:39 PM UTC, comment #1: Confirmed. It gets it correct for column vectors octave:4> trapz (ones (3,1), 2) ans = 0 0 0 I'll take a quick look.	Rik <rik5>
Tue 10 Jul 2018 07:33:26 AM UTC, original submission: octave's trapz behaves differently from matlab on row vectors, and appears to ignore the dim argument in this case. with octave: >> version ans = 4.4.0x >> trapz(ones(1,3),1) ans = 2 On matlab >> version ans = '9.4.0.813654 (R2018a)' >> trapz(ones(1,3),1) ans = 0 0 0	A.R. Burgers <arb>

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Date	Changed by	Updated Field	Previous Value	Replaced by
2018-07-10	rik5	Status	Confirmed	Fixed
		Open/Closed	Open	Closed
2018-07-10	rik5	Status	None	Confirmed

GNU Octave - Bugs: bug #54277, trapz ignores dim argument for a...

bug #54277: trapz ignores dim argument for a row vector

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