[R] Solving Classification problems in R

Luca Cerone luca.cerone at gmail.com
Fri Feb 28 19:37:44 CET 2014


Now I feel quite stupid :) I was assuming that since there is a
"Clustering" one there would have been a "Classification" one as well
:)
Thanks for pointing it out to me!
Luca Cerone

Tel: +34 692 06 71 28
Skype: luca.cerone


On Fri, Feb 28, 2014 at 6:38 PM, Prof Brian Ripley
<ripley at stats.ox.ac.uk> wrote:
> http://cran.r-project.org/web/views/MachineLearning.html for a task view you
> missed.
>
>
> On 28/02/2014 17:10, Luca Cerone wrote:
>>
>> Thanks for the advices Sergio and Jean-Olivier.
>> Of course I forgot, but I am interested in supervised classification!
>> I'll go through the packages you suggested to me!
>> Any ideas for Neural Networks and Random Forests instead?
>>
>> Luca Cerone
>>
>> Tel: +34 692 06 71 28
>> Skype: luca.cerone
>>
>>
>> On Fri, Feb 28, 2014 at 6:01 PM, JiHO <jo.lists at gmail.com> wrote:
>>>
>>> Do you mean supervised or unsupervised classification.
>>>
>>> If supervised, I have had great success using gradient boosted
>>> classification in package gbm. multinomial distribution will get you
>>> multiple classes and it will select relevant predictors by itself
>>> given the training data.
>>>
>>> Not sure about the customized cost functions
>>>
>>> Jean-Olivier Irisson
>>>>>> Université Pierre et Marie Curie
>>> Laboratoire d'Océanographie de Villefranche
>>> 181 Chemin du Lazaret 06230 Villefranche-sur-Mer
>>> Tel: +33 04 93 76 38 04
>>> Mob: +33 06 21 05 19 90
>>> http://www.obs-vlfr.fr/~irisson/
>>> Send me large files at: http://www.obs-vlfr.fr/~irisson/upload/
>>>
>>> On Fri, Feb 28, 2014 at 5:53 PM, Sergio Fonda <sergio.fonda99 at gmail.com>
>>> wrote:
>>>>
>>>> Focus on MASS, CCA and e1071 packages
>>>> Brgds,
>>>> Sergio
>>>> Il 28/feb/2014 17:47 "Luca Cerone" <luca.cerone at gmail.com> ha scritto:
>>>>
>>>>> Dear all,
>>>>> I would like some advices on R packages to solve classification
>>>>> problems.
>>>>> I have tried to search among the Task views, but couldn't find
>>>>> anything.
>>>>>
>>>>> Can somebody recommend me some packages?
>>>>>
>>>>> Some of the features I am looking for:
>>>>> - deal with multiple classes
>>>>> - use customized cost functions
>>>>> - perform features/predictors selection
>>>>>
>>>>> Any hint would be greatly appreciated,
>>>>> thanks a lot in advance for the help!
>>>>> Cheers,
>>>>> Luca
>>>>>
>>>>> ______________________________________________
>>>>> R-help at r-project.org mailing list
>>>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>>>> PLEASE do read the posting guide
>>>>> http://www.R-project.org/posting-guide.html
>>>>> and provide commented, minimal, self-contained, reproducible code.
>>>>>
>>>>
>>>>          [[alternative HTML version deleted]]
>>>>
>>>> ______________________________________________
>>>> R-help at r-project.org mailing list
>>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>>> PLEASE do read the posting guide
>>>> http://www.R-project.org/posting-guide.html
>>>> and provide commented, minimal, self-contained, reproducible code.
>>
>>
>> ______________________________________________
>> R-help at r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide
>> http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
>
>
> --
> Brian D. Ripley,                  ripley at stats.ox.ac.uk
> Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
> University of Oxford,             Tel:  +44 1865 272861 (self)
> 1 South Parks Road,                     +44 1865 272866 (PA)
> Oxford OX1 3TG, UK                Fax:  +44 1865 272595




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