[R] nu-SVM crashes in e1071

[David Meyer]

For the records: this was a bug in e1071 (which is already fixed & new
version on CRAN).

Best
David

Steve Lianoglou wrote:
> Hi,
> 
> On Wed, Mar 3, 2010 at 4:08 AM, Häring, Tim (LWF)
> <Tim.Haering at lwf.bayern.de> wrote:
>> (...)
>>
>>> While you're sending your bug report to David, perhaps you can try the
>>> SVM from kernlab.
>>>
>>> It relies on code from libsvm, too, but ... you never know. It can't
>>> hurt to try.
>> Hi Steve,
>>
>> thanks for that hint.
>> I tried ksvm()-function bet get an error message:
>>
>> model <- ksvm(soil_unit~., train, type="nu-svc")
>> Using automatic sigma estimation (sigest) for RBF or laplace kernel
>> Error in votematrix[i, ret < 0] <- votematrix[i, ret < 0] + 1 :
>>  NAs are not allowed in subscripted assignments
>>
>> But there are no NAs in my dataset. I checked it with
>> summary(is.na(train))
> 
> All the same, it seems there might be something funky with your data?
> 
> Not sure how to help debug further. If you like you send an *.rda file
> of your soil_unit data offline and I can try, but otherwise I guess
> you're on your own?
> 
> What if you remove some of the columns of your matrix? Will this
> eventually work?
> -steve
> 

-- 
Priv.-Doz. Dr. David Meyer
Department of Information Systems and Operations

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