[Numpy-discussion] Recurrence relationships
Wed May 6 09:37:09 CDT 2009
The application is essentially filtering 1D arrays, typically N is
>20e6, the required result is y[1:N].
[mailto:firstname.lastname@example.org] On Behalf Of Alan G Isaac
Sent: Wednesday, May 06, 2009 10:25 AM
To: Discussion of Numerical Python
Subject: Re: [Numpy-discussion] Recurrence relationships
On 5/6/2009 10:00 AM Talbot, Gerry apparently wrote:
> for n in xrange(1,N):
> y[n] = A*x[n] + B*y[n-1]
So, x is known before you start?
How big is N? Also, is y.shape (N,)?
Do you need all of y or only y[N]?
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