[R] Erros with RVM and LSSVM from kernlab library

[Max Kuhn]

I think that the issue is that this version of rvm is only for  
regression (and, if I understood correctly, you are passing class  
labels).

Max



On Aug 19, 2009, at 6:36 PM, David Winsemius <dwinsemius at comcast.net>  
wrote:

>
> On Aug 19, 2009, at 6:30 PM, Noah Silverman wrote:
>
>> Thanks David,
>>
>> Then, do you have any clue why RVM or LSSVM would be generating an  
>> error?
>
> No.
>>
>> My original post was:
>>
>>
>> "When running RVM or LSSVM on the exact same data as the SVM 
>> {e1071}, I get an error that I don't understand:
>> Error in .local(x, ...) : kernel must inherit from class 'kernel' "
>>
>> Any suggestions?
>
> My suggestion would be to include more information. Expecting people  
> to figure out where the error arose when they have not been given:  
> a) the code that produced the error and b) a good-faith effort at a  
> description of the data supplied seems an exercise in futility.
>
>
>>
>> Thanks!
>>
>>
>>
>> On 8/19/09 3:17 PM, David Winsemius wrote:
>>>
>>>
>>> On Aug 19, 2009, at 6:11 PM, Noah Silverman wrote:
>>>
>>>> Steve,
>>>>
>>>> Not sure what to do with this.
>>>>
>>>> I have a data.frame.  Don't know how to convert it to a list.
>>>
>>> A data.frame is a list.
>>>
>>>>
>>>> Does anybody else have any input on this?
>>>>
>>>>
>>>>
>>>> On 8/19/09 12:17 PM, Steve Lianoglou wrote:
>>>>>> Steve,
>>>>>>
>>>>>> That makes sense, except that x is a data.frame with about 70
>>>>>> columns.  So I don't see how it would convert to a list.
>>>>>
>>>>> Yeah ... not sure if that's what happening (R class
>>>>> relationships/testing is still a bit of a mystery to me), but see:
>>>>>
>>>>> R> df <- data.frame(a=1:10,b=1:10)
>>>>> R> is(df)
>>>>> [1] "data.frame" "list"       "oldClass"   "mpinput"    "vector"
>>>>>
>>>>> But
>>>>>
>>>>> R> is(df, 'list')
>>>>> [1] FALSE
>>>>>
>>>>> So, in short, I don't know if that's what's happening ... did it  
>>>>> fix
>>>>> your problem, tho?
>>>>>
>>>>> -steve
>>>
>>> David Winsemius, MD
>>> Heritage Laboratories
>>> West Hartford, CT
>>>
>
> David Winsemius, MD
> Heritage Laboratories
> West Hartford, CT
>
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