I always use apsrtable in the apsrtable package, which allows you to specify a vcov matrix using the "se" option. The only trick is that you have to append it to your model object, something like this:

fit=lm(y ~ x)
fit$se=vcovHC(fit)
apsrtable(fit, se="robust")

Andrew Miles


On Jan 5, 2011, at 7:57 PM, Jan Henckens wrote:

Hello,

I've got a question concerning the usage of robust standard errors in regression using lm() and exporting the summaries to LaTeX using the memisc-packages function mtable():

Is there any possibility to use robust errors which are obtained by vcovHC() when generating the LateX-output by mtable()?

I tried to manipulate the lm-object by appending the "new" covariance matrix but mtable seems to generate the summary itself since it is not possible to call mtable(summary(lm1)).

I'd like to obtain a table with the following structure (using standard errors I already worked out how to archieve it):


Variable & Coeff.   & robust S.E. & lower 95% KI & upper 95% KI \\
Var1     & x.22^(*) & (xxxxx)     & [xxxxx       &  xxxxx]      \\
.
.
.



Maybe someone has any suggestions how to implement this kind of table?

Best regards,
Jan Henckens


--
jan.henckens | jöllenbecker str. 58 | 33613 bielefeld
tel 0521-5251970

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