RE: Octave 3.6.0-rc1 release candidate available for ftp

[PhilipNienhuis]

Robinson, Melvin D-2 wrote
> 
> 
> From: octave-maintainers-bounces@ address@hidden on behalf
> of PhilipNienhuis address@hidden
> Sent: Friday, January 13, 2012 10:00 AM
> To: octave-maintainers@
> Subject: Re: Octave 3.6.0-rc1 release candidate available for ftp
> 
> John W. Eaton wrote
>>
>> The second release candidate of Octave 3.6.0 is now available from
>> alpha.gnu.org in the directory /gnu/octave:
> <snip>
> 
> 3. make check reports a fail in:
>>>>>> processing
>>>>>> /home/philip/devel/octave-3.6.0-rc1/scripts/signal/fftfilt.m
>   ***** test
>   r = sqrt(1/2) * (1+i);
>   b = b*r;
>   assert(fftfilt(b, x  ), r*[1 1 0 0 0 0 0 0 0 0]  , eps);
>   assert(fftfilt(b, r*x), r*r*[1 1 0 0 0 0 0 0 0 0], eps);
>   assert(fftfilt(b, x.'), r*[1 1 0 0 0 0 0 0 0 0].', eps);
> !!!!! test failed
> assert (fftfilt (b, r * x),r * r * [1, 1, 0, 0, 0, 0, 0, 0, 0, 0],eps)
> expected
>  Columns 1 through 4:
>    0.00000 + 1.00000i   0.00000 + 1.00000i   0.00000 + 0.00000i   0.00000
> +
> 0.00000i
>  Columns 5 through 8:
>    0.00000 + 0.00000i   0.00000 + 0.00000i   0.00000 + 0.00000i   0.00000
> +
> 0.00000i
>  Columns 9 and 10:
>    0.00000 + 0.00000i   0.00000 + 0.00000i
> but got
>  Columns 1 through 4:
>   -0.00000 + 1.00000i   0.00000 + 1.00000i   0.00000 - 0.00000i  -0.00000
> -
> 0.00000i
>  Columns 5 through 8:
>   -0.00000 + 0.00000i  -0.00000 + 0.00000i  -0.00000 + 0.00000i  -0.00000
> +
> 0.00000i
>  Columns 9 and 10:
>   -0.00000 + 0.00000i  -0.00000 + 0.00000i
> maximum absolute error 2.25371e-16 exceeds tolerance 2.22045e-16
> shared variables   scalar structure containing the fields:
>     b =
>        1   1
>     x =
>        1   0   0   0   0   0   0   0   0   0
>     r = [](0x0)
> 
> (doesn't look too harmful to me, seems just a matter of tolerance)
> 
> 
> I think that you can solve #3 by making sure that fftw3f library is
> installed.  If you build FFTW by hand you just configure it with the
> --enable-float option.  Fixed this error up for me.
> 
> 

Yep, after installing libfftw-devel 3.3.2, I get

------------------------------
Summary:

  PASS  10132
  FAIL      0

There were 2 expected failures (see fntests.log for details).

Expected failures are known bugs.  Please help improve Octave
by contributing fixes for them.

There were 8 skipped tests (see fntests.log for details).
------------------------------

Thanks,

Philip

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