how can one use mathematica get the approximate derivative of {x,y} data points?
- To: mathgroup at smc.vnet.net
- Subject: [mg124309] how can one use mathematica get the approximate derivative of {x,y} data points?
- From: dr DanW <dmaxwarren at gmail.com>
- Date: Mon, 16 Jan 2012 17:12:57 -0500 (EST)
- Delivered-to: l-mathgroup@mail-archive0.wolfram.com
The derivative curve you will get with Interpolation[]' can look very weird. I find I get better results using Interpolation[..., Method->"Spline"]'. The Spline function is continuous in first and second derivatives, so the resulting derivative is smoother. Daniel