RFC: spline / splinefun (etc) amalgamation
Tue, 26 May 1998 07:55:49 +0200 (CEST)
>>>>> Ross Ihaka writes:
> At present R has separate functions "spline" and "splinefun". The first
> of these carries out spline interpolation of a data set and returns the
> interpolated values; the second returns the interpolating function itself
> (approx and approxfun are similar).
> I would like to combine these into a single function "spline" with
> an (optional) argument which determines which kind of value is returned.
> spline(x,y) # return interpolated function
> spline(x,y,fun=T) # return the interpolating function
> I would also like to propose this as a standard for smoothing and
> interpolating functions. This has a couple of advantages - fewer
> names to remember and, the ability to use the function form in
> model fitting code ("predict" for example).
> Any objections or comments?
should in general return the FUNCTION (more precisely, a function
object of an appropriate class), and the values would be obtained
(May not be BBC, though ...)
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