I would like to add to this discussion a quote from the book
``Subset Selection in Regression'' by Alan J. Miller (Chapman and
Hall, London, 1990). On page 12 the author remarks that when using a
``black box'' variable selection technique
``Throwing in a few more variables produced by a
Hi Walmir,
Here is the long version of Frank Harrell's answer.
http://www.pitt.edu/~wpilib/statfaq/regrfaq.html
Paul
On Tue, 2005-05-03 at 08:21 -0500, Frank E Harrell Jr wrote:
> walmir-rodrigues wrote:
> > Dear Fellows,
> >
> > How can I do to proced a step wise regression in R, if it´s
Frank E Harrell Jr a écrit :
walmir-rodrigues wrote:
Dear Fellows,
How can I do to proced a step wise regression in R, if it´s possible ?
Thanks,
Walmir
Here is an easy approach that will yield results only slightly less
valid than one actually using the response variable:
x <- data.frame(x1,x2
(Ted Harding) wrote:
On 03-May-05 Frank E Harrell Jr wrote:
walmir-rodrigues wrote:
Dear Fellows,
How can I do to proced a step wise regression in R, if it´s possible ?
Thanks,
Walmir
Here is an easy approach that will yield results only slightly less
valid than one actually using the response va
On 03-May-05 Frank E Harrell Jr wrote:
> walmir-rodrigues wrote:
>> Dear Fellows,
>>
>> How can I do to proced a step wise regression in R, if it´s possible ?
>>
>> Thanks,
>>
>> Walmir
>
> Here is an easy approach that will yield results only slightly less
> valid than one actually using the
> From: Frank E Harrell Jr
>
> walmir-rodrigues wrote:
> > Dear Fellows,
> >
> > How can I do to proced a step wise regression in R, if it´s
> possible ?
> >
> > Thanks,
> >
> > Walmir
>
> Here is an easy approach that will yield results only slightly less
> valid than one actually using th
walmir-rodrigues wrote:
Dear Fellows,
How can I do to proced a step wise regression in R, if it´s possible ?
Thanks,
Walmir
Here is an easy approach that will yield results only slightly less
valid than one actually using the response variable:
x <- data.frame(x1,x2,x3,x4,..., other potential pr
Le 03.05.2005 14:53, walmir-rodrigues a écrit :
Dear Fellows,
How can I do to proced a step wise regression in R, if it´s possible ?
Thanks,
Walmir
?step
?stepAIC
--
~
~~ Romain FRANCOIS - http://addictedtor.free.fr
Dear Fellows,
How can I do to proced a step wise regression in R, if it´s possible ?
Thanks,
Walmir
__
Acabe com aquelas janelinhas que pulam na sua tela.
AntiPop-up UOL - É grátis!
http://antipopup.uol.com.br/
