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Re: max([],1)
From: |
David Bateman |
Subject: |
Re: max([],1) |
Date: |
Fri, 08 Jun 2007 15:47:33 +0200 |
User-agent: |
Thunderbird 1.5.0.7 (X11/20060921) |
Gerd Bürger wrote:
> In octave-2.9 I get
>
> max(1,[]) = 1, max([],1) = [].
>
> Is that on purpose?
>
> Gerd
> _______________________________________________
> Help-octave mailing list
> address@hidden
> https://www.cae.wisc.edu/mailman/listinfo/help-octave
>
>
I get the same behavior in 2.9.12+, but MatlabR2007a gives..
>> max(1,[])
ans =
[]
>> max([],1)
ans =
[]
>> max(1,[],1)
ans =
1
In fact I think the matlab behavior is rather stupid as "max(1,[])"
should probably be treated as "max(1,[],1)". In any case the attached
patch makes the behavior compatible.. John, make your choice whether you
want to apply it or not...
D.
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--- src/DLD-FUNCTIONS/minmax.cc.~1.23.~ 2006-10-17 15:39:23.000000000 +0200
+++ src/DLD-FUNCTIONS/minmax.cc 2007-06-08 15:44:36.812698395 +0200
@@ -99,7 +99,7 @@
dim = 0; \
} \
\
- bool single_arg = (nargin == 1) || arg2.is_empty(); \
+ bool single_arg = (nargin == 1) || (arg2.is_empty() && nargin == 3); \
\
if (single_arg && (nargout == 1 || nargout == 0)) \
{ \
- max([],1), Gerd Bürger, 2007/06/08
- Re: max([],1),
David Bateman <=
- Re: max([],1), John W. Eaton, 2007/06/12
- Re: max([],1), Tom Holroyd (NIH/NIMH) [E], 2007/06/12
- Re: max([],1), David Bateman, 2007/06/13
- Re: max([],1), John W. Eaton, 2007/06/13
- Re: max([],1), David Bateman, 2007/06/13