Re: Findfit in C++
- To: mathgroup at smc.vnet.net
- Subject: [mg84930] Re: Findfit in C++
- From: Mayneord <xrayspectrum at googlemail.com>
- Date: Sun, 20 Jan 2008 03:33:50 -0500 (EST)
- References: <fmmli1$fe2$1@smc.vnet.net> <fmngbi$3cn$1@smc.vnet.net>
On Jan 17, 1:06 pm, heiko <heiko.damerau.n... at web.de> wrote: > Dear May, > > There are functions for fitting in the book Numerical Recipeshttp://www.nr.com/. > > A while ago, I had the same problem to fit some data in C++ and to > reproduce > the results from the Mathematica fit routine. The routine mrqmin > (implementation of the > Levenberg-Marquardt algorithm) should do what you want. The same > algorithm is also > normally used by default in Mathematica. At least, in my case the > results in C++ finally > were the same as in Mathematica. > > Best regards, > Heiko Dear Heiko, first I would like to thank you for the information. I got a pdf file from this book, in which the code is given about "Levenberg-Marquardt algorithm". I just wanted to copy from it manually but please can you tell me what is this header file given at the beginning of the code #include "nrutil.h" ? . Can I run the program without including this or where do I get this file from? Please understand i am newbie in C+ +. looking forward for your reply thanks and regards May