[Biomod-commits] Error GAM

[Wilfried Thuiller]

Hi Joaquim,
Do you have a categorical data non-specified as factor? These usuals bugs come when you have a variable with one or more different values but not many (typically a factor). GAM tries to make a smoothing function out of that and then crashed. 
Cheers
Wilfried


Le 9 juil. 2013 à 12:01, Antonio Canepa <ajcanepa at gmail.com> a écrit :

> Hi Joaquin,
> It seems that you need to specify 'manually' the amount of degrees of
> freedom s(x1, k=3), if you would like to use a quadratic response (k=3),
> for instance.
> Cheers,
> 
> Antonio
> 
> 
> 
> On 9 July 2013 11:26, Joaquin DL <jduquelazo at gmail.com> wrote:
> 
>> Dear all,
>> 
>> I am running Biomod2 (version 2.1.15) with diferent species and prevalence.
>> I always got this error for GAM.
>> 
>> Error in smooth.construct.tp.smooth.spec(object, dk$data, dk$knots) :
>>  A term has fewer unique covariate combinations than specified maximum
>> degrees of freedom
>> Error in predict(model.bm, Data[, expl_var_names, drop = FALSE], on_0_1000
>> = TRUE) :
>>  error in evaluating the argument 'object' in selecting a method for
>> function 'predict': Error: object 'model.bm' not found
>> 
>> How can I solve it?
>> 
>> Thanks
>> 
>> Joaquin
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>> 
> 
> 
> 
> -- 
> Antonio Canepa Oneto
> PhD student
> Dept. Biologia Marina i Oceanografia
> Institut de Ciencies Del Mar CMIMA, CSIC
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> BARCELONA, Catalunya,Spain
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>           ajcanepa at gmail.com
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-----------------------------
Dr. Wilfried Thuiller
Laboratoire d'Ecologie Alpine, UMR CNRS 5553
Université Joseph Fourier
BP53, 38041 Grenoble cedex 9, France
tel: +33 (0)4 76 51 44 97
fax: +33 (0)4 76 51 42 79

Email: wilfried.thuiller at ujf-grenoble.fr
Personal website: http://www.will.chez-alice.fr
Team website: http://www-leca.ujf-grenoble.fr/equipes/emabio.htm

ERC Starting Grant TEEMBIO project: http://www.will.chez-alice.fr/Research.html