Levenberg-Marquardt algorithm ?

[Raedwulf]

Hi:

Im writing a line graph plotter class in vb with the possibility of implementing several useful curve-fitting functions.
I was wondering whether the Levenberg-Marquardt algorithm has already been implemented in vb. If it has, could someone tell me. Otherwise I will jsut have to port lmfit from c.....a task that isn't too difficult but is time consuming.

Btw. I have implemented a ternary heap sort. (rather than the popular binary heap sort) I managed to modify it into a 4 and 5 node heap sort.
Does anyone have an idea what is after ternary?....

e.g. binary(2), ternary(3), ?(4), ?(5), ?(6), ?(7) ,?(8).....................

Thanks

[Raedwulf]

LoL....no one wants to help me

[namrekka]

Perhaps these links will help you

http://www.dirfile.com/freeware/activex.htm

http://www.sharewareconnection.com/t...regression.htm

http://www.activex-download.net/activex/Scripting.html

[Raedwulf]

I was actualy looking for code lol But nvm I probably just have to port the c version when i feel like it....:P

[VBAhack]

Foxes team has an Optimization Excel Add-In that includes a VB implementation of Levenberg-Marquardt algorithm. Here's a link:

http://digilander.libero.it/foxes/SoftwareDownload.htm

Look for Didactic Optimization Tool for EXCEL.

[Raedwulf]

cheers thanks