<>
Or you can use -svmat- to get them all at once. e.g.,
******************************!
clear
webuse auto
ds price make, not
regress price `r(varlist)' , nocons
mat A = get(_b)
matrix li A
*****
preserve
clear
svmat A, names(beta_)
g id = _n
reshape long beta_, i(id) j(beta_num)
drop id
save betas.dta, replace
restore
*****
use betas.dta, clear
******************************!
~ Eric
__
Eric A. Booth
Public Policy Research Institute
Texas A&M University
ebooth@ppri.tamu.edu
Office: +979.845.6754
On Jul 5, 2010, at 3:36 PM, Dani Tilley wrote:
> Hi,
>
> I need to extract the first element of a matrix of coefficients and store it on a variable, and repeat the process i times. I can set up the for loop and do the storing, but I don't know how to access element [i,j] of a matrix A.
>
> In particular, my matrix is e(b), the vector of coefficients from a regression with k explanatory variables. I tried -e(b)[1,1]- but that didn't take me far.
>
> Any help is appreciated.
>
> Thanks,
> DF Tilley
>
>
>
>
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