[R] how to predict with logistic model in package logistf ?

[David Firth]

On 27 Oct 2005, at 09:18, jinlong li wrote:

> dear community,
>      I am a beginer in R , and can't predict with logistic model  in 
> package
> logistf,

Not exactly the answer to your question, but an alternative to the 
logistf package, which purports to do similar things, is brlr (which 
does provide a predict method).  Does this work for you?

   library(brlr)
   data(sex2)
   fit <- brlr(case ~ age + oc + vic + vicl + vis + dia, data = sex2)
   predict(fit, newdata = sex2)

David

> could anyone help me ? thanks !
>
> the following is my command and result :
>
>> library(logistf)
>> data(sex2)
>> fit<-logistf(case ~ age+oc+vic+vicl+vis+dia, data=sex2)
>> predict(fit,newdata=sex2)
>    Error in predict(fit, newdata = sex2) : no applicable method for
> "predict"
>
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