[R] help: what are the basis functions in {mgcv}: gam?

oliviax oliviax at 126.com
Tue Mar 24 13:58:28 CET 2009


Thank you very much. 
I have downloaded your paper.

Best regards.

Olivia


Simon Wood-4 wrote:
> 
> If you can't get hold of the book, try appendix A of 
> http://www.maths.bath.ac.uk/~sw283/simon/papers/psm.pdf
> -- what's described there is the "cr" basis
> 
> best,
> Simon
>  
> 
> On Tuesday 24 March 2009 05:01, oliviax wrote:
>> Thanks for Andrew Robinson's suggestion.
>>
>> I am sorry that I have been looking for the book Wood (2006) "Generalized
>> Additive Models: Introduction with R" for a long time in my univerity and
>> book stores, but I failed to find one. I think it may take a long time to
>> buy one from the Internet, and we are required to submit the master
>> thesis
>> soon...
>>
>> Could any one help me if you know other references or have knowledge
>> about
>> this??
>>
>> I will be very very thankful.
>>
>> Sincerely yours,
>> Olivia
>>
>> oliviax wrote:
>> > I am writing my thesis with the function gam(), with the package
>> {mgcv}.
>> >
>> > My command is: gam(y~s(x1,bs="cr")+s(x2, bs="cr")).
>> >
>> > I need help to know what are the default basis funcitons for gam. I
>> have
>> > not found any detailed reference for this.
>> >
>> > Can anyone help me with this??
> 
> -- 
>> Simon Wood, Mathematical Sciences, University of Bath, Bath, BA2 7AY UK
>> +44 1225 386603  www.maths.bath.ac.uk/~sw283
> 
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