[SciPy-user] decimate

Sebastian Haase haase@msg.ucsf....
Sat Oct 25 15:21:50 CDT 2008


On Sat, Oct 25, 2008 at 9:53 PM, Bill Baxter <wbaxter@gmail.com> wrote:
> On Sun, Oct 26, 2008 at 4:42 AM, Travis E. Oliphant
> <oliphant@enthought.com> wrote:
>> John Hunter wrote:
>>> One of the functions I used to use a lot in matlab was decimate, which
>>> downsamples data after doing a low pass filter to prevent aliasing.
>>>
>>
>> You can use the function resample in scipy.signal.  It uses a Fourier
>> method for the low-pass filter.
>>
>> resample(x, len(x)/q)
>>
>> should give a similar result as decimate(x, q)
>
> Ooh, wiki fodder!
> Pasted this tidbit here: http://www.scipy.org/NumPy_for_Matlab_Users
Should it read   Sci.signal.resample   !?

-Sebastian Haase


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