Query? Software for Non-linear multiple regression method

[vishal]

Hi friends,
Can any body guide me which freely available software (Windows OS) has the option to carry out Non-linear multiple regression method. Please also explain me details how to use it step by step. For your information, I have one dependent variable and 5 independent variable. Please answer quickly if it is possible.

Regard..
VISHAL

[sharief77]

check this link

http://www.oceanographers.net/forums/showthread.php?t=282


regards

Sharief

[vishal]

Dear sharif,
Thanks for your response. What I need is software for multiple non-linear regression(Not e-books). If anybody is having idea of freely available software, kindly help me.
Regards
Vishal

[yaswant]

Dear sharif,
Thanks for your response. What I need is software for multiple non-linear regression(Not e-books). If anybody is having idea of freely available software, kindly help me.
Regards
VishalI am not aware of any freeware that will take something and give many things you ask though, there are a number of commercial packages available - Statistica, SPSS, SPlus,... to name few of them. However, one must understand the theory of Multivariate analyses before applying the technique (and the links provided on Oceanographers.Net are quite useful).
There are some *free* statistical tool available at http://members.aol.com/johnp71/javasta2.html

[skdash]

thanks yaswant for the nice link.

[vishal]

Thanks for your response. I have already checked in this link but there are softwares only for linear multiple regression. I did not get any free software for non-linear multiple regression. If anybody is having clear idea regarding the same, please help me.

regards
vishal

[sharief77]

You could use Artificial Neural Networks, Genetic Algorithms or Genetic Programs for Non-linear data modelling. it would be good if you could explain a bit about your application area.

regards
Sharief

[rajeshj]

Dear Vishal,
what you mean by nonlinear multiple regression equation is very important. an equation of the form,
Y=a0+a1*X1+a2*X2+a3*X3+....... is a linear multiple regression equation, but
Y=a0+a1*W1+a2*W2+a3*W3+....... can be a non linear m reg equation if, say W2=log(X2) or W3=(sqrt(X3)) or so. so that also is a non linear equation in independant variables Xi but linear in a0, a1 .... So this polinomial regression equations can be solved like the following way

if you put Yj as a column matrix Yand Wij as a matrix W with the first column of unity, you can find matrix ai as follows.

A=(W'W)**-1*W'Y (A equals inverse of W'W multiplied by W'Y)
You can very well do this in matlab. Standard statistical packages are very costly and if you dont have matlab and stat packages, you try to download some evaluation version of spss or the sort and use it for 30 days. Best wishes.

Thanks for reading,
Rajesh

[deba]

Hi,
I am attaching an Artificial Neural Networks software which is MS-Excel based.
But unfortnately i have never used it and also dont remember from where i downloaded the same.
Probably anyone who wishes to use this may have to go thro the details and as requested by the programmers, acknowledge them if this is used for publication (well i dont know who actually the owners of this software are and u have to find out urself).
hope this might be of help.
best wishes,
deba

[rky78]

Hi Vishal,
I have one software i.e. DATAFIT for the linear as well as nonlinear regression.
This software is downloadable and you can download this via http://www.curvefitting.com website. You can enjoy with this software for the 30day trial period. I think your requirement will be solved.