Hi Uwe,
I can attach the data file to an email or send you a link so you can
download it. Which one do you prefer?
Thanks for your help ...
Best, Reza


On Sun, Aug 19, 2012 at 4:10 PM, Uwe Ligges <ligges@statistik.tu-dortmund.de
> wrote:

>
>
> On 19.08.2012 11:06, Reza Salimi-Khorshidi wrote:
>
>> Dear list,
>> I am using the ksvm function from kernlab as follows:
>>
>> (1) learning
>>
>>> svm.pol4 <- ksvm(class.labs ~ ., data = train.data, prob.model = T, scale
>>>
>> = T, kernel = "polydot")
>>
>> (2) prediction
>>
>>> svm.pol.prd4 <- predict(svm.pol4, train.data, type = "probabilities")[,2]
>>>
>>
>> But unfortunately, when calling the prediction, once in every 10s of times
>> (using the exact same data), it returns the following error message:
>>
>> Error in prob.model(object)[[p]]$A :
>>    $ operator is invalid for atomic vectors
>> Calls: predict -> predict -> .local -> .SigmoidPredict
>> Execution halted
>>
>> Does anyone know what the problem is? Any help will be much appreciated.
>>
>
>
> We need a reproducible example.
>
> Best,
> Uwe Ligges
>

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