[R] Calculate mean slope of a function

[Rolf Turner]

On 12/03/2010, at 4:27 AM, Antje Steller wrote:

> Hallo,
> hope you can help me with this question:
> 
> I have calculated a function using f<-smooth.spline(data) and
> approxfun(f). Now I want to calculate the mean slope of the resulting
> function.
> 
> Haven't found the right R command yet, maybe you can give me a hint.


(1) You haven't found the right anything.  It's time you learned some
mathematics if you are going to deal with mathematical concepts
like ``slope''.  And ``mean''.

(2) Is this a homework question?

(3) Define clearly what you mean by ``mean slope''.  Write down a mathematical
expression for this.  The answer is then obvious.

No R function required.

	cheers,

		Rolf Turner
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