st: how to store matrix in a data file

["rasool.bux" <rasool.bux@aku.edu>]

I want to store coefficients of each model in a separate data set by running the following code. Is there any solution?

sysuse auto,clear
forv i=1/5 {
       use "$S_FN",clear
        generate weight2 = weight^2
        bsample _N
        stepwise, pr(.2): regress mpg weight weight2 displ gear turn headroom foreign price
         mat b = e(b)
}

Thanks
Rasool Bux
Sr. Data Management Coordinator
Community Health Sciences Department,
Aga Khan University, Stadium Road,
P.O. Box 3500, Karachi 74800.
Pakistan.

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