Description Usage Arguments Value Author(s)
summary
method for class gbm.cverr
1 2 |
object |
Output from |
... |
Further arguments passed to or from other methods. |
Calling
summary(gbm.cverr)
produces a data frame with rows corresponding to
sets of metaparameters and columns that denote for each row,
min.cv.error |
Minimum cross-validation error resulting from the given set of metaparameters. |
w.index |
The index of the (optional) list of weight vectors
corresponding to the given set of metaparameters. This will be omitted if
a list of weights was not provided to |
var.monotone.index |
The index of the (optional) list of monotonicity
vectors corresponding to the given set of metaparameters. This will be
omitted if a list of weights was not provided to |
interaction.depth |
The interaction depth corresponding to the given set of metaparameters. |
n.minobsinnode |
Minimum number of observations in the terminal nodes of the trees for the given set of metaparameters. |
shrinkage |
The shrinkage parameter corresponding to the given set of metaparameters. |
bag.fraction |
The fraction of independent training observations randomly selected to propose the next tree corresponding to the given set of metaparameters. |
n.trees |
The optimum number of trees to utilize given the set of
metaprameters denoted in the row. Note that entries in this column will be
marked with '>=' if the boosting procedure was terminated due to time running
out for this set of metaparameters, determined by the user-specified
|
Sets of metaparameters (rows) are ordered from best (top row) to worst (last row) in terms of the resulting cross-validation error.
Daniel B. McArtor (dmcartor@nd.edu)
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