[R] Erros with RVM and LSSVM from kernlab library

[David Winsemius]

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