[SciPy-User] sinc interpolation
Giovanni Marco Dall'Olio
dalloliogm at gmail.com
Wed Nov 25 11:16:39 EST 2009
On Wed, Nov 25, 2009 at 3:48 PM, Travis Oliphant <oliphant at enthought.com>wrote:
>
>
> from scipy.signal import resample
> from numpy import r_, sin
> from pylab import plot
>
> x = r_[0:10]
> y = sin(x)
> yy = resample(x, 100)
>
> # This is a bit tricky to get the x-samples right
> xx = r_[0:10:101j][:-1]
>
just a question, why don't you use numpy.linspace(0, 10, 101) ?
>>> n = numpy.linspace(0, 10, 101)[:-1]
array([ 0. , 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8,
0.9, 1. , 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7,
1.8, 1.9, 2. , 2.1, 2.2, 2.3, 2.4, 2.5, 2.6,
2.7, 2.8, 2.9, 3. , 3.1, 3.2, 3.3, 3.4, 3.5,
3.6, 3.7, 3.8, 3.9, 4. , 4.1, 4.2, 4.3, 4.4,
4.5, 4.6, 4.7, 4.8, 4.9, 5. , 5.1, 5.2, 5.3,
5.4, 5.5, 5.6, 5.7, 5.8, 5.9, 6. , 6.1, 6.2,
6.3, 6.4, 6.5, 6.6, 6.7, 6.8, 6.9, 7. , 7.1,
7.2, 7.3, 7.4, 7.5, 7.6, 7.7, 7.8, 7.9, 8. ,
8.1, 8.2, 8.3, 8.4, 8.5, 8.6, 8.7, 8.8, 8.9,
9. , 9.1, 9.2, 9.3, 9.4, 9.5, 9.6, 9.7, 9.8,
9.9, 10. ])
>>> n == r_[0:10:101j][:-1]
[True.....]
--
Giovanni Dall'Olio, phd student
Department of Biologia Evolutiva at CEXS-UPF (Barcelona, Spain)
My blog on bioinformatics: http://bioinfoblog.it
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