Two questions

Greetings,

		I have two questions that I could not answer from the
documentation.

	A - ecdf and confidence intervals : Is there a (simple) way to generate
confidence intervals (95%) for a ecdf? 

	B - cross-validation of rpart trees : a colleague is using S to
generate decision tree and mentioned to me the use of cross-validation. Is
this function enabled in R ? if so, how should one proceed to do it?

	Thanks,

	Christian

		
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