Re: restricting interpolating functions to be positive
- To: mathgroup at smc.vnet.net
- Subject: [mg106440] Re: restricting interpolating functions to be positive
- From: dh <dh at metrohm.com>
- Date: Wed, 13 Jan 2010 05:54:54 -0500 (EST)
- References: <higdjs$kfi$1@smc.vnet.net> <hihgmn$fga$1@smc.vnet.net>
Sorry there is a type. Should read InterpolationOrder->1. Daniel dh wrote: > Hi, > > Interpolation by default fits cubic polynomials. These tend to > > over/undershoot the points given. If you can live with linear > > interpolation, you may specify InterpolationOrder->0. Then the points > > are simply connected by straight lines. > > Daniel > > > > dantimatter wrote: > >> Hi All, > > >> I would like to construct an interpolation that can only take on > >> positive values. The data that I'm trying to interpolate is all > >> positive, but for some reason the Interpolation[] function 'wants' to > >> connect the dots by dipping below zero. Is there a way to force > >> positivity? Or should I simply adjust the InterpolationOrder until it > >> works? > > >> Thanks, > >> Dan > > > >