search for: unbaised

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2003 Apr 16
2
Jackknife and rpart
...orked through a baging tutorial and now understand the "many tree" approach. However, it is not what I want to do! My bagged errors are accpetable but I need to use the actual tree and need a single tree application. I am using rpart for a classification tree but am interested in a more unbaised estimator of error in my tree. I lack sufficent data to train and test the tree and I'm hoping to bootstrap, or rather jacknife, an error estimate. I do not think the rpart.object can be applied to the jackknife function in bootstrap but can I do something as simple as: for(i in 1:number of s...