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Hallo! Does anybody know if it is possible to choose the function to be maximazed in the principal components analysis?Thanks Simone Vantini

I'd like to create a bidimensional presentation of a classification tree built using the rpart() function. I've seen that a partition.tree() function exists for the tree() function. Does a similar function exist for the rpart() function? Thanks...

hallo! does everybody know which kind of objects the function toLatex can manage? thanks simone vantini -- Simone Vantini MOX (Modelling and Scientific Computing) Dipartimento di Matematica "F. Brioschi" Politecnico di Milano P.za Leonardo da Vinci, 32 20133 Milano (Italy...

I'm trying to personalize the rpart function by introducing a list('init','split','eval') in the argument method. But I receive an error message:"Error in t.default(x): argument is not a matrix". Can anyone tell me what...

Hallo dear R-users! Does anyone know if it's possible to use the weights argument (available in rpart() ) in mvpart() function too?Thanks a lot Simone Vantini -- Simone Vantini MOX (Modelling and Scientific Computing) Dipartimento di Matematica "F. Brioschi...

Hallo R-users, I would like to know if there is a way to get the effective degrees of freedom in local polinomial regression. At the moment, to carry out the local polinomial regression, I am using the function locpoly...

Hallo! I am a student of the Politecnico di Milano (Milan, italy) and I'm working on CARTs. I'm trying to use the R rpart function with a personalized splitfunction... but I'm not able to do it! More...

> Thanks a lot!I've found that the matrix argument of the function > t.default() is init$y. I thought that y and x were the response and the > predective variables of the data of the node, isn't it...

>Thanks a lot!I've found that the matrix argument of the function >t.default() is init$y. I thought that y and x were the response and the >predective variables of the data of the node, isn't it...