Hi,
Thanks for reporting this. The bug has been fixed in SVN, so you can
get an updated version frem there if you wish. The corrected version
will be in version 1.0.8 of the package.
Søren
ons, 15 10 2008 kl. 12:58 -0300, skrev Lucas Chiesa:
> Hi!
>
> Using Octave 3.0.0 in Ubuntu 8.04, with the statistics-1.0.7 package
> I'm having problems with the mad function.
>
> octave:6> a=randn (1,30);
> octave:7> mad(a);
> usage: a = mad (X,dim)
> error: evaluating if command near line 23, column 3
> error: called from `mad' in file `/home/tulku/octave/statistics-1.0.7/mad.m'
>
> I got the same error with all these commands:
>
> octave:7> mad(a');
> octave:7> mad(a,1);
> octave:7> mad(a,2);
>
> Interesting, the help mad output is:
>
> octave:7> help mad
> a = mad(X)
> mean absolute deviation of X
>
> and it does not mention the "dim" argument.
>
> Looking at the source code of the mad function I changed the offending
> if, and seems to fix the problem. It is a very small change, showed in
> the following diff:
>
> --- mad.m 2008-10-15 12:53:57.000000000 -0300
> +++ new-mad.m 2008-10-15 12:54:17.000000000 -0300
> @@ -20,7 +20,7 @@
> dim = min(find(size(X)>1));
> if isempty(dim), dim=1; endif
> endif
> - if (nargin != 1 || nargin != 2)
> + if (nargin != 1 && nargin != 2)
> usage("a = mad (X,dim)");
> elseif (prod(size(X)) != size(X,dim))
> % if (prod(size(X)) != size(X,dim))
>
> The help string should also be fixed to include the dim argument.
>
> Thank you very much!
>
> Lucas Chiesa
>
> "Oh no, not again."
>
> - A bowl of petunias on it's way to certain death.
>
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