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[Octave-bug-tracker] [bug #42122] kmeans in statistics package produces
From: |
anonymous |
Subject: |
[Octave-bug-tracker] [bug #42122] kmeans in statistics package produces error when an option is set but not emptyaction |
Date: |
Tue, 15 Apr 2014 10:09:18 +0000 |
User-agent: |
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:28.0) Gecko/20100101 Firefox/28.0 |
URL:
<http://savannah.gnu.org/bugs/?42122>
Summary: kmeans in statistics package produces error when an
option is set but not emptyaction
Project: GNU Octave
Submitted by: None
Submitted on: Tue 15 Apr 2014 10:09:17 AM UTC
Category: Octave Forge Package
Severity: 3 - Normal
Priority: 5 - Normal
Item Group: None
Status: None
Assigned to: None
Originator Name:
Originator Email: address@hidden
Open/Closed: Open
Discussion Lock: Any
Release: 3.8.1
Operating System: GNU/Linux
_______________________________________________________
Details:
I am using Octave 3.8 and the statistics package version 1.2.3, when I make a
call like:
kmeans(data,8,'distance','cityblock')
I get an error such as:
error: Invalid call to tolower. Correct usage is:
-- Mapping Function: tolower (S)
-- Mapping Function: lower (S)
error: called from:
error: /usr/share/octave/3.8.1/m/help/print_usage.m at line 89, column 5
error: /home/ubuntu/octave/statistics-1.2.3/kmeans.m at line 53, column 5
The problem seems to be that the following bit of code in kmeans.m assumes
that whenever there is some parameter set, emptyaction must be set, i.e. that
"find (strcmpi (prop, "emptyaction") == 1)" finds something, however when
'emptyaction' is not set this line produces an empty result:
if (length (varargin) > 0)
## check for the 'emptyaction' property
found = find (strcmpi (prop, "emptyaction") == 1);
switch (tolower (prop{found+1}))
case "singleton"
emptyaction = "singleton";
otherwise
error ("kmeans: unsupported empty cluster action parameter");
endswitch
endif
changing it to the following solved the problem for me:
if (length (varargin) > 0)
## check for the 'emptyaction' property
found = find (strcmpi (prop, "emptyaction") == 1);
if (~isempty(found))
switch (tolower (prop{found+1}))
case "singleton"
emptyaction = "singleton";
otherwise
error ("kmeans: unsupported empty cluster action parameter");
endswitch
endif
endif
Thanks,
Anton
_______________________________________________________
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- [Octave-bug-tracker] [bug #42122] kmeans in statistics package produces error when an option is set but not emptyaction,
anonymous <=
- [Octave-bug-tracker] [bug #42122] statistics package: kmeans in produces error when an option is set but not emptyaction, Carnë Draug, 2014/04/15
- [Octave-bug-tracker] [bug #42122] statistics package: kmeans in produces error when an option is set but not emptyaction, Arno Onken, 2014/04/20
- [Octave-bug-tracker] [bug #42122] statistics package: kmeans in produces error when an option is set but not emptyaction, Mike Miller, 2014/04/20
- [Octave-bug-tracker] [bug #42122] statistics package: kmeans in produces error when an option is set but not emptyaction, Anton, 2014/04/22
- [Octave-bug-tracker] [bug #42122] statistics package: kmeans in produces error when an option is set but not emptyaction, Mike Miller, 2014/04/22
- [Octave-bug-tracker] [bug #42122] statistics package: kmeans in produces error when an option is set but not emptyaction, Anton, 2014/04/22
- [Octave-bug-tracker] [bug #42122] statistics package: kmeans in produces error when an option is set but not emptyaction, Mike Miller, 2014/04/22