search for: doksum

Displaying 3 results from an estimated 3 matches for "doksum".

2003 Jul 21
3
Confidence Band for empirical distribution function
Hi, I was trying to draw an empirical distribution function with uniform confidence bands. So I tried to find a way to calculate values of the Kolmogorov-Smirnov Distribution but failed. I guess it must be hidden somewhere (since the ks-test is implemented), but I was unable to find it. Is there any way to do this? Thanks Leif Boysen
2005 Feb 02
1
A modified log transformation with real finite values for negatives and zeros?
Does anyone have any ideas (or even experience) regarding a modified log transformation that would assign real finite values to zeros and negative numbers? I encounter this routinely in a couple of different situations: * Physical measurements that are often lognormally distributed except for values that are less than additive normal measurement error. I'd like to take
2001 Oct 22
3
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