[R] party::ctree

[Achim Zeileis]

On Tue, 18 Feb 2014, Karki, Amrit B wrote:

> Would you mind to help me how to extract coefficients of significant 
> variables using ctree model? How to implement the model like logistic 
> and others. Thank you.

ctree() is a nonparametric model and there are no "significant 
coefficients". Some variables are selected for splits, others are not, and 
there are certain methods that try to derive so-called importance 
measures. However, for single trees these are used less often than for 
forests (such as cforest()).

If you want to combine decision trees with parametric models such as 
logistic regressions (that do have coefficients), you could consider the 
mob() function in the same package.

hth,
Z

> Amrit
>
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