[R] Obtaining the variable names of a glm object

[ripley@stats.ox.ac.uk]

On Fri, 29 Nov 2002, Kenneth Roy Cabrera Torres wrote:

>
>
> On Fri, 29 Nov 2002, Phil Saunders wrote:
>
> > Is names(model1$coef) what you're looking for?
>
> I know that I obtain the names, but I want to obtain them
> separated, not in one string.

That is not one string, it is a character *vector*.

> >
> > -----Original Message-----
> > From: Kenneth Cabrera [mailto:krcabrer at epm.net.co]
> > Sent: 29 November 2002 10:36
> > Cc: R-help at stat.math.ethz.ch
> > Subject: [R] Obtaining the variable names of a glm object
> >
> >
> >
> > Hi, R users!
> > Suppose I make a model like this:
> >
> > model1<-glm(resp~var1+var2+factor1+factor2+var1:factor1+var1:factor1+var2:factor2+var2:factor2,family=poisson)
> >
> >
> > where "resp" is a response variable (poisson distributed) "var1" and "var2" are continuous variables and "factor1" and "factor2" are nominal variables (here I use them as
> > dummy variable)
> > "factor1" has 2 levels (2 and 8)  and "factor2" 3 levels ( 1, 6 and 12). Now I want to obtain the labels of the coeficients of the model in 3
> > separate columns and a
> > 4th column with the corresponding value,
> >
> > like this:
> >
> > variable1       variable2      level       value
> > (intercept)                                  X
> > var1                                         X
> > var2                                         X
> > factor1                            8         X
> > factor2                            6         X
> > factor2                           12         X
> > var1                factor1        8         X
> > var1                factor2        6         X
> > var1                factor2       12         X
> > var2                factor1        8         X
> > var2                factor2        6         X
> > var2                factor2       12         X
> >
> > If I use:
> > model1$coef, I obtain the name of the coef, but joined.
> > I want them separated.
> >
> > Thank you very much for your help!!!
> >
> > --
> > Kenneth Roy Cabrera Torres
> >
> >
> >
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-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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