st: storing coefficients generated by nlcom

[Giulio Zanella <gzanella@wisc.edu>]

After estimation, I generated a nonlinear combination of a coefficient (and 
standard error) with command nlcom. This coefficient is stored into matrix 
s(b). Is there a way to add this new coefficient to the e(b) matrix of 
original coeffients? Command nlcom allows option post, which replaces the 
e(b) matrix instead of updating it.

Thanks

Giulio Zanella 
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