[R] formatting data to be analysed using multinomial logistic regression (nnet)

sun as at hut.at
Wed Sep 13 10:38:16 CEST 2006


bump.

would like to know the answer too. I am about using nnet--multinom to 
estimate a multinomial logit model, but are not sure if this function 
handles categorical data input.

Thanks for any help.

----- Original Message ----- 
From: "Bob Green" <bgreen at dyson.brisnet.org.au>
To: <r-help at stat.math.ethz.ch>
Sent: Sunday, September 10, 2006 10:24 PM
Subject: [R] formatting data to be analysed using multinomial logistic 
regression (nnet)


>
>
> I am looking into using the multinomial logistic regression option in the
> nnet library and have two questions about formatting the data.
>
> 1. Can data be analysed in the following format  or does it need to be
> transformed into count data, such as the housing data in MASS?
>
> Id Crime paranoia hallucinate toc disorg crimhist age
> 1 2 1 0 1 0 1 25
> 2 2 0 1 1 1 1 37
> 3 1 1 0 1 1 0 42
> 4 3 0 0 0 0 1 25
> 5 2 1 0 1 0 0 49
>
>
> 2.    Can a ratio variable such as $age be included into a model, such as
> the one below?
>
>
> crimepred <- glm  (crime ~ paranoia + hallucinate + toc  + crimhist, 
> family
> = poisson, data = mht )
>
>
> Any assistance with the above is appreciated,
>
>
> regards
>
> Bob Green
>
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