[SciPy-user] Bad publicity, was:Re: problems with signal-functions impulse and step ...

Robert Kern robert.kern@gmail....
Mon Apr 16 14:20:49 CDT 2007

Stef Mientki wrote:
> Stefan van der Walt wrote:

>> If so, which version of scipy are you using?  This works fine on 0.5.3
>> r2897.
> Python 2.4.3 - Enthought Edition 1.0.0 (#69, Aug  2 2006, 12:09:59) [MSC 
> v.1310 32 bit (Intel)] on win32.
> Sorry, probably you mean a version of some sublibrary,
> I don't know which library you mean and
> I don't know how I can get that version.

>>> import scipy
>>> print scipy.__version__

> Of course this is not very important to me,
> because I can get the step and impuls response just as easy from lfilter.
> But I think this is (very) bad publicity for SciPy,
> after all, everyone starting with (deterministic) signal analysis,
> will start with some simple filters,
> and the first thing they want to see is amplitude response,
> the second thing the want to see is the impuls response.
> If indeed these functions are so buggy,

They're not anymore.

Robert Kern

"I have come to believe that the whole world is an enigma, a harmless enigma
 that is made terrible by our own mad attempt to interpret it as though it had
 an underlying truth."
  -- Umberto Eco

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