I would look at the latest paper by Nuno Lourenco.

Dear Pimiskern,

Thank you very much for detailed description on symbolic regression. I would be glad if you please share a Matlab code in which symbolic regression is implemented. Form theory of symbolic regression, it is very difficult for me to understand it. 

Thanks

with

Warm regards

Dear Ryser-Welch,

It is difficult for me to identify Prof. Nuno Lourenco. I request please share any one research paper for the same.

Thanks

with

Warm regards

Hello Ghanshyam Tejani

 The following software are available for implementing symbolic regression:

GPTIPS software:  is a free, open source, MATLAB based symbolic regression     software

Eureqa  software:  implements symbolic regression

DataMelt  software:  implements symbolic regression in Java and Python

RGP software: implements symbolic regression in R

You don't need to write your own code to use these software.

Eureka is freely downloadable from (M. Schmidt Eureqa web page) http://creativemachines.cornell.edu/eureqa

GPTIPS software is indeed free, open source, l need it please. ls it good for social science research?