# [SciPy-User] Interpolate a list of numbers?

Anthony Palomba apalomba@austin.rr....
Thu Sep 15 12:00:17 CDT 2011

```Hey Robert, thanks for your response.

That worked perfectly!

many thanks,
Anthony

On Tue, Sep 13, 2011 at 6:43 PM, Robert Kern <robert.kern@gmail.com> wrote:

> On Tue, Sep 13, 2011 at 18:22, Anthony Palomba <apalomba@austin.rr.com>
> wrote:
> > Just to be super clear...
> >
> > Instead of using a range, a la np.linspace, I want to be able
> > to interpolate a list of paired tuples,
> >
> > like [x1, y1, x2, y2, x3, y3, x4, y4]
> >
> > Any ideas?
>
> I am going to assume you meant [(x1,y1), (x2,y2), ...].
>
> def interpmap(c, points):
>    x, y = np.array(points).transpose()
>    f = interpolate.interp1d(x, y)
>    return f(c)
>
> > On Tue, Sep 13, 2011 at 5:57 PM, Anthony Palomba <apalomba@austin.rr.com
> >
> > wrote:
> >>
> >> Hey scipyers,
> >>
> >> I have an interpolation question...
> >>
> >> I have a function that I am currently using to do interpolation.
> >>
> >> def interpmap(c, x1, y1, x2, y2, base = None):
> >>     range1 = np.linspace(x1, y1, 20)
> >>     range2 = np.linspace(x2, y2, 20)
> >>     f = interpolate.interp1d(range1, range2)
> >>     return f(c)
> >>
> >> I takes range (x1 <= y1) and maps it on to (x2 <= y2).
> >>
> >> I would like to be able to specify a list of points as
> >> the range. Is it possible to create a linspace from a list?
> >>
> >>
> >>
> >> Thanks,
> >> Anthony
> >>
> >
> >
> > _______________________________________________
> > SciPy-User mailing list
> > SciPy-User@scipy.org
> > http://mail.scipy.org/mailman/listinfo/scipy-user
> >
> >
>
>
>
> --
> 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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