Re: st: -svy: mean - problem with returned matrices

[Richard Williams <Richard.A.Williams.5@ND.edu>]

At 11:38 AM 5/31/2007, Steven Samuels wrote:
> Can anyone explain why I get the following error?  How can I access
> the elements of the matrix which generates the error?
> Thanks,
>
> Steve
>
> Program:
> /************************************/
> webuse nhanes2, clear
> svyset
> svy : mean height
> ereturn list
> matrix list e(V_srs)
> di el(e(V_srs),1,1)   //OKAY
>
> matrix list e(b)
> di el(e(b),1,1)      //GENERATES ERROR
> /*************************************/
change the last line to

matrix bmat = e(b)
di el(bmat,1,1)

I'm not sure why you get an error but I generally find it is easier 
to make a copy of e(b) and to work with it.


-------------------------------------------
Richard Williams, Notre Dame Dept of Sociology
OFFICE: (574)631-6668, (574)631-6463
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EMAIL:  Richard.A.Williams.5@ND.Edu
WWW:    http://www.nd.edu/~rwilliam

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