R help - Mar 2010 - Error in object$tables[[v]] : subscript out of bounds

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]  
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 		 	   		  
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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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