[BioC] need help in tune.nnet

[madhurima bhattacharjee]

Dear R people,

I want to use the tune.nnet function of e1071 package to tune nnet .
I am unable to understand the parameters of tune.nnet from the e1071 pdf 
document.
I have performed nnet on a traindata and want to test it for class 
prediction with a testdata.
I want to know the values of size,decay,range etc. parameters for which 
the prediction of testdata is best.
Can anyone please tell me how to do this with the tune.nnet function.

Anticipating quick response.

Thanks and Regards,
Madhurima.