[R] Numerical differentiation of a vector of values

William Dunlap wdunlap at tibco.com
Fri Dec 18 16:52:24 CET 2015

You can fit a spline to the points and evaluate the derivative
of the fitted spline where you want.  The built-in splines package
has functions for this, as do other packages on CRAN.

Bill Dunlap
TIBCO Software
wdunlap tibco.com

On Fri, Dec 18, 2015 at 1:09 AM, BARLAS Marios 247554 <Marios.BARLAS at cea.fr>

> Hi everyone,
> I have sets of experimental values representing I-V curves. I want to get
> the derivative of such numerical data but in r there doesn' seem to be a
> premade function. I can write something of my own, but I was wondering if
> there is a standard package out there?
> Thanks in advance!
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