[R] how to extract the original data of a glm object
vito muggeo
vmuggeo at dssm.unipa.it
Mon Nov 12 13:22:03 CET 2007
See and *read* the help file ?glm
the object returned by glm() includes the `data' component
hence:
aa<-glm(..)
aa$data
or also eval(aa$call$data)
leffgh ha scritto:
> my function is
> glm(a~log(b)+c+d+e,family=binomial,data=f)->aa
>
>
> I want to extract the original data set of aa. How to do it ?
>
> You may suggest the model.frame() function. In fact ,i have tried it.
> model.frame returns a data frame of containing a,log(b) NOT b,c,d,e
> I want to extract a data frame containing a,b,c,d,e,which is exactly the
> same as "f"
> How can I achieve this result?
>
>
> I want to do this because I need to extract the formular and act on another
> data set ,whose predict variables are the same as those of "f", but the
> response variable is different .
--
====================================
Vito M.R. Muggeo
Dip.to Sc Statist e Matem `Vianelli'
Università di Palermo
viale delle Scienze, edificio 13
90128 Palermo - ITALY
tel: 091 6626240
fax: 091 485726/485612
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