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.bar...@cea.fr> wrote: > 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! > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
