On Sun, 14 Dec 2008, John Fox wrote:
Dear Stas and David,
A couple of people have mentioned linear.hypothesis() in the car package,
which has methods for several kinds of models and a default method that will
work for any model that responds to coef() and vcov(). The delta.method()
function in
ov
> Sent: December-14-08 12:33 AM
> To: r-help@r-project.org
> Subject: Re: [R] Functions in R like lincom and nlcom of Stata
>
> Those commands provide point estimates, standard errors and confidence
> intervals based on linear combination of parameters or
> linearization/delta-
On Sat, 13 Dec 2008, Stas Kolenikov wrote:
Those commands provide point estimates, standard errors and confidence
intervals based on linear combination of parameters or
linearization/delta-method, respectively. R's contrasts appear to be
limited to a single factor and combinations that sum up to
There is function for linear combination in car package as well.
Best
Ronggui
On Sun, Dec 14, 2008 at 1:42 PM, Andrew Robinson
wrote:
>
> estimable in the gmodels package provides point estimates, standard
> errors and confidence intervals for arbitrary linear combinations of
> model parameters.
estimable in the gmodels package provides point estimates, standard
errors and confidence intervals for arbitrary linear combinations of
model parameters. I don't know for non-linear combinations, though.
Cheers
Andrew
On Sat, Dec 13, 2008 at 11:33:12PM -0600, Stas Kolenikov wrote:
> Those com
Those commands provide point estimates, standard errors and confidence
intervals based on linear combination of parameters or
linearization/delta-method, respectively. R's contrasts appear to be
limited to a single factor and combinations that sum up to zero.
I am too so used to this Stata's conce
On Dec 12, 2008, at 11:14 AM, Marc Marí Dell'Olmo wrote:
Hello all,
Does anyone know if there exists any function in R that resembles the
"lincom" and "nlcom" of STATA?. These functions computes point
estimates, standard errors, significance levels, confidence intervals,
etc. for linear and no
Hello all,
Does anyone know if there exists any function in R that resembles the
"lincom" and "nlcom" of STATA?. These functions computes point
estimates, standard errors, significance levels, confidence intervals,
etc. for linear and non linear combinations of previous estimated
parameters. Down
Hello all,
Does anyone know if there exists any function in R that resembles the
"lincom" and "nlcom" of STATA?. These functions computes point estimates,
standard errors, significance levels, confidence intervals, etc. for linear
and non linear combinations of previous estimated parameters. Down
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