

 

Hi Uwe,
Thank you so much for your reply.
 
I still receive the error message.
These are the details of R:
1)R version 2.9.1
2)package 'e1071' was built under R version 2.9.2
 
this is the whole code- I don’t use any other code:
 
library(e1071)
data(iris)
attach(iris)
class_label <- names(iris)[5]  
myformula <- formula(paste(class_label,"~ ."))
mymodel<-naiveBayes(myformula, iris,cross=3) 
predict(mymodel,iris)        ##Error in object$tables[[v]] : subscript out of bounds
 
Cheers,
Amy

> Date: Sun, 14 Mar 2010 19:50:27 +0100
> From: ligges@statistik.tu-dortmund.de
> To: amy_4_5_84@hotmail.com
> CC: r-help@r-project.org
> Subject: Re: [R] Error in object$tables[[v]] : subscript out of bounds
> 
> 
> 
> On 14.03.2010 19:12, Amy Hessen wrote:
> >
> >
> >
> >
> > Hi Uwe,
> > Thanks for your reply.
> >
> > I did not understand what you mean and I still receive the error message.
> 
> OK, so which version of R and which version of e1071 is this?
> Do you have any objects in your workspace?
> 
> I do not get an error message, just a nonsense result as requested.
> 
> 
> 
> > Do you mean that something is wrong in computing FORMULA?
> >
> > I want to use formula in Naļve instead of using the class label, could you please tell me where is the wrong?
> 
> 
> As I said, the left hand side must label the classes, you chose the 
> first variable in iris which is NOT a factor.
> 
> You need:
> 
> mymodel <- naiveBayes(Species ~ ., data = iris, cross = 3)
> 
> or if you want to compute ion the data before:
> 
> class_label<- names(iris)[5] # !!!
> 
> 
> Best,
> Uwe
> 
> 
> 
> > Cheers,
> > Amy
> >
> >> Date: Sun, 14 Mar 2010 15:30:36 +0100
> >> From: ligges@statistik.tu-dortmund.de
> >> To: amy_4_5_84@hotmail.com
> >> CC: r-help@r-project.org
> >> Subject: Re: [R] Error in object$tables[[v]] : subscript out of bounds
> >>
> >>
> >>
> >> On 14.03.2010 11:55, Amy Hessen wrote:
> >>>
> >>>
> >>>
> >>> Hi,
> >>> Could you please tell me how I correct the following error message?
> >>> “Error in object$tables[[v]] : subscript out of bounds”
> >>>
> >>> This is the code:
> >>>
> >>> library(e1071)
> >>> data(iris)
> >>> attach(iris)
> >>> class_label<- names(iris)[1]
> >>
> >> This is not the name for the class variable of the wiris data from R.
> >>
> >>
> >>> myformula<- formula(paste(class_label,"~ ."))
> >>
> >> Why do you construct this in a so complicated manner rather than typing
> >> the formula directly?
> >>
> >>
> >>> mymodel<-naiveBayes(myformula, iris,cross=3)
> >>
> >> naiveBayes sort of fails (well, it runs smoothly but the result won't
> >> make sense) here since it expects a class variable.
> >>
> >>
> >>> predict(mymodel,iris) ##Error in object$tables[[v]] : subscript out of bounds
> >>
> >>
> >> Works for me.
> >>
> >>
> >> Please upgrade R, e1071 and run in a clean session to see that the code
> >> above does not fail. Although it makes absolutely no sense.
> >>
> >> Uwe Ligges
> >>
> >>
> >>
> >>> Cheers,
> >>> Amy
> >>> _________________________________________________________________
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> >>>
> >>>
> >>>
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