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

From   Steven Samuels <>
Subject   Re: st: Re: -svy: mean - problem with returned matrices
Date   Thu, 31 May 2007 13:51:00 -0400

Nick, Stas, Michael, Richard: Thanks for your quick responses. The problem (i.e. bug) is not confined to -display-. I also could not not use "el(e(b),1,1)" as an expression in -generate- or -local-. I guess it's time for me to buckle down and learn Mata; meanwhile, Michael and Richard's solution is all I need.


On May 31, 2007, at 1:04 PM, Michael Blasnik wrote:

A work around to deal with this type of error is usually to just copy the ereturned matrix to a regular matrix

mat beta=e(b)
di el(beta,1,1)

works fine.

Michael Blasnik

----- Original Message ----- From: "Steven Samuels" <>
To: <>
Sent: Thursday, May 31, 2007 12:38 PM
Subject: st: -svy: mean - problem with returned matrices

Can anyone explain why I get the following error? How can I access the elements of the matrix which generates the error?


webuse nhanes2, clear
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
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