[REQUEST] a MATLAB or R code for significant input variable selection for Neural Network Model

[ska51]

Could anyone please give me a MATLAB or R code for the selection of significant input variables for neural network modelling. It would be highly appreciated. I have total 69 input and 1 output. So, I need to select the most significant input variables from 69 inputs to develop a neural network model. Since I will develop model in neural network platform, so MATLAB (or R) code in the same platform would be a great support to my work.

Thanks in advance.