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[Octave-bug-tracker] [bug #44009] row-wise cummin / cummax fail if rows
From: |
anonymous |
Subject: |
[Octave-bug-tracker] [bug #44009] row-wise cummin / cummax fail if rows start with NaN |
Date: |
Thu, 15 Jan 2015 05:31:07 +0000 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:34.0) Gecko/20100101 Firefox/34.0 |
URL:
<http://savannah.gnu.org/bugs/?44009>
Summary: row-wise cummin / cummax fail if rows start with NaN
Project: GNU Octave
Submitted by: None
Submitted on: Thu 15 Jan 2015 05:31:06 AM UTC
Category: Octave Function
Severity: 3 - Normal
Priority: 5 - Normal
Item Group: Incorrect Result
Status: None
Assigned to: None
Originator Name: Lachlan
Originator Email: address@hidden
Open/Closed: Open
Discussion Lock: Any
Release: 3.8.2
Operating System: GNU/Linux
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Details:
Taking cummin over a dimension other than 1 gives undefined results if one of
the rows starts with NaN, but later contains valid values.
For example,
cummin([1 2; NaN 1], 2)
gave me
1.0000e+00 1.8652e-316
NaN 1.0000e+00
instead of the top-right element being 1.
This is fixed by the attached patch, which supplies the required "else" clause
in liboctave/operators/mx-inlines.cc
Lachlan
_______________________________________________________
File Attachments:
-------------------------------------------------------
Date: Thu 15 Jan 2015 05:31:06 AM UTC Name: octave-cummin.patch Size: 715B
By: None
<http://savannah.gnu.org/bugs/download.php?file_id=32835>
_______________________________________________________
Reply to this item at:
<http://savannah.gnu.org/bugs/?44009>
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- [Octave-bug-tracker] [bug #44009] row-wise cummin / cummax fail if rows start with NaN,
anonymous <=