Re: smoothing functions to avoid artifacts in graphs
- To: mathgroup at smc.vnet.net
- Subject: [mg39299] Re: smoothing functions to avoid artifacts in graphs
- From: "Steve Luttrell" <luttrell at _removemefirst_westmal.demon.co.uk>
- Date: Mon, 10 Feb 2003 01:07:30 -0500 (EST)
- References: <b258u4$hoj$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
You could smooth the function by using ListConvolve[kernel, sampled function]. You could use a smoothing kernel likeTable[1/n,{n}] for some small value of n. Fancier smoothing would use a "tapered" kernel which tails off towards zero at the edges of the kernel. -- Steve Luttrell West Malvern, UK "Gerald Kaiser" <kaiser at wavelets.com> wrote in message news:b258u4$hoj$1 at smc.vnet.net... > I'm trying to make a 3D plot of a rapidly varying positive function, > but no matter by how much I increase PlotPoints, I get artifacts, > probably due to insufficient sampling. When I change the PotPoints > number, the artifacts change cahracter but remain present. Old plots I > have with another system of the same function are smooth and reflect its true > behavior. Does Mathematica have an option to smooth data before > plotting? > > Thanks, > > Gerald Kaiser > The Virginia Center for Signals and Waves > http://www.wavelets.com > >