[SciPy-User] Very simple IIR filters?

Sturla Molden sturla@molden...
Tue Oct 30 11:18:55 CDT 2012


On 29.10.2012 20:43, Ralf Gommers wrote:

> How much faster is "a bit"?

They are so short that the extra overhead from scipy.signal.lfilter 
might double the run-time. On the other hand, they are so fast that it 
might not matter anyway. I.e. they will always be faster than other IIR 
filters we use with scipy.signal.lfilter.

(And replicating the machinery of scipy.signal.lfilter takes a bit of 
work, i.e. filtering along axes, etc. So I am in favor of just computing 
the coefficients.)

Sturla


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