Differentiation of Spline Fits
- To: mathgroup at smc.vnet.net
- Subject: [mg25893] Differentiation of Spline Fits
- From: rmj at stanford.edu (Roger M. Jones)
- Date: Tue, 7 Nov 2000 02:56:02 -0500 (EST)
- Organization: Stanford University, CA 94305, USA
- Sender: owner-wri-mathgroup at wolfram.com
The function SplineFit[dat,Cubic] results in an excellent fit to rapidly varying data. However, I also need to have the derivative of the function available at intermediate points. Is it possible to take the derivative of SplineFit even though it produces a parameteric output? I have searched Mathsource and found a user written non-parametric spline fitting function but it not very effifient for many thousands of data points. Is there an efficient spline fitting function available that allows derivatives to be obtained? Many thanks, -Roger Jones -- (rmj at leland.stanford.edu)