neural network sensitivity analysis inputs

Is there a command to the neural network, which tells me that input variable is more important in the equation generated?

Created a network of 10 neurons, and analyzing the weights is very difficult. Exist a command that MATLAB make me a sensitivity analysis ?

XOXO

Answer 1

[Greg Heath]

No. However, I have gotten very good fast suboptimal results by starting with polynomial models of standardized (zero-mean/unit-variance) variables because polynomials are linear in the coefficients. Typically, I start with backward and forward selection of linear and quadratic models. Relatively useless variables are often readily discarded at this stage before continuing with backward and sometimes forward selection with neural models.

Hope this helps.

Thank you for formally accepting my answer

Greg

P.S. Sizes of MATLAB EXAMPLE regression, time-series and classification datasets can be obtained from NEWSGROUP threads 337914, 338208 and 339984, respectively.

[Luis Velasquez Acero]

Hello Greg, do you know if this option is available using the NNSTART toolbox, Fitting option in MATLAB 2022a? I see the question above was asked in 2015. Best regards,