[R] Error in object$tables[[v]] : subscript out of bounds

[Uwe Ligges]

On 14.03.2010 20:17, Amy Hessen wrote:
>
>
>
>
> 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


Then please do upgarde to R-2.10.1 and a corresponding recent version of 
e1071. As I said at least twice before, you won't get an error with 
recent versions.

Uwe



> Cheers,
> Amy
>
>> Date: Sun, 14 Mar 2010 19:50:27 +0100
>> From: ligges at statistik.tu-dortmund.de
>> To: amy_4_5_84 at hotmail.com
>> CC: r-help at r-project.org
>> Subject: Re: [R] Error in object$tables[[v]] : subscript out of bounds
>>
>>
>>
>> On 14.03.2010 19:12, Amy Hessen wrote:
>>>
>>>
>>>
>>>
>>> Hi Uwe,
>>> Thanks for your reply.
>>>
>>> I did not understand what you mean and I still receive the error message.
>>
>> OK, so which version of R and which version of e1071 is this?
>> Do you have any objects in your workspace?
>>
>> I do not get an error message, just a nonsense result as requested.
>>
>>
>>
>>> Do you mean that something is wrong in computing FORMULA?
>>>
>>> I want to use formula in Naïve instead of using the class label, could you please tell me where is the wrong?
>>
>>
>> As I said, the left hand side must label the classes, you chose the
>> first variable in iris which is NOT a factor.
>>
>> You need:
>>
>> mymodel<- naiveBayes(Species ~ ., data = iris, cross = 3)
>>
>> or if you want to compute ion the data before:
>>
>> class_label<- names(iris)[5] # !!!
>>
>>
>> Best,
>> Uwe
>>
>>
>>
>>> Cheers,
>>> Amy
>>>
>>>> Date: Sun, 14 Mar 2010 15:30:36 +0100
>>>> From: ligges at statistik.tu-dortmund.de
>>>> To: amy_4_5_84 at hotmail.com
>>>> CC: r-help at r-project.org
>>>> Subject: Re: [R] Error in object$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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