Re: nonlinear curve fitting using orthogonal distance regression?

*To*: mathgroup at smc.vnet.net*Subject*: [mg124731] Re: nonlinear curve fitting using orthogonal distance regression?*From*: Ray Koopman <koopman at sfu.ca>*Date*: Fri, 3 Feb 2012 02:08:26 -0500 (EST)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com*References*: <jgdmrn$qnv$1@smc.vnet.net>

On Feb 2, 2:00 am, "Michael B. Heaney" <mhea... at gmail.com> wrote: > Does anyone know if there is a way to do nonlinear curve fitting using > orthogonal distance regression? Is this the sort of thing you had in mind? Dimensions/@{xdata,ydata} -> {{n,p},{n,q}} f[x_,params_] := function that takes a row of xdata and gives an estimate of the corresponding row of ydata as a function of params; FindMinimum[#.#&@Flatten[ f[#,params]&/@xdata - ydata ], parameter names and initial guesstimates]