hello, I apologize that I poste this question again but I did not receive any replies on this topic and would like to know if the mail has been read over or if there is no method of statistical prediction computation for poisson errors in glm(). I am looking for a way to compute the model prediciton error of a glm() with poisson error family. cv.glm() does not work. (it prompts values around 90.00) A " not there isn't such a method" would be fine as well. Thanks in advance, Martin
The help page for "predict" says it is a generic function. Then
command 'methods("predict")' reveals a function called
"predict.glm",
which has its own help page. Does that provide what you want?
Also, I didn't find your earlier post in "www.r-project.org"
->
"search" -> "R site search". I found 15 hits for
"martin wegmann
prediction glm", but none that looked like your question below; perhaps
someone else can explain why I didn't find your earlier post. I also
found 25 hits for "statistical prediction for glm". Have you looked
at
those? One or more of them might help you.
hope this helps. spencer graves
Martin Wegmann wrote:
>hello,
>
>I apologize that I poste this question again but I did not receive any
replies
>on this topic and would like to know if the mail has been read over or if
>there is no method of statistical prediction computation for poisson errors
>in glm().
>
>I am looking for a way to compute the model prediciton error of a glm() with
>poisson error family.
>cv.glm() does not work. (it prompts values around 90.00)
>
>A " not there isn't such a method" would be fine as well.
>
>Thanks in advance, Martin
>
>______________________________________________
>R-help at stat.math.ethz.ch mailing list
>https://www.stat.math.ethz.ch/mailman/listinfo/r-help
>
>
Martin - I can't figure out what question you are asking. Does either predict.glm() in the base package or cv.glm() in the boot package do what you want ? The theory for all of this is given in the references listed in the help pages for "glm" and "cv.glm". - tom blackwell - u michigan medical school - ann arbor - On Mon, 24 Nov 2003, Martin Wegmann wrote:> hello, > > I apologize that I poste this question again but I did not receive any replies > on this topic and would like to know if the mail has been read over or if > there is no method of statistical prediction computation for poisson errors > in glm(). > > I am looking for a way to compute the model prediciton error of a glm() with > poisson error family. > cv.glm() does not work. (it prompts values around 90.00) > > A " not there isn't such a method" would be fine as well. > > Thanks in advance, Martin > > ______________________________________________ > R-help at stat.math.ethz.ch mailing list > https://www.stat.math.ethz.ch/mailman/listinfo/r-help >