Displaying 3 results from an estimated 3 matches for "nprune".
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prune
2011 Feb 16
1
caret::train() and ctree()
Like earth can be trained simultaneously for degree and nprune, is there a way to train ctree simultaneously for mincriterion and maxdepth?
Also, I notice there are separate methods ctree and ctree2, and if both options are attempted to tune with one method, the summary averages the option it doesn't support. The full log is attached, and notice these...
2007 Nov 29
0
New versions of the caret (3.08) and caretLSF (1.12) packages
...scellaneous functions.
In the new versions:
- The elasticnet and the lasso (from the enet package) have been
added
- mars and fda models are now fit using the earth package. Instead of
using nk as a tuning parameter, these models now use the default nk from
the training set and tunes over nprune. This mimics the process used by
earth/mars/fda more closely.
- A bug was fixed with leave-one-out cross-validation.
- For some models, the calculations in the train function are much
more efficient. Wherever possible, caret tries to avoid re-fitting
models if it can get predictions from su...
2007 Nov 29
0
New versions of the caret (3.08) and caretLSF (1.12) packages
...scellaneous functions.
In the new versions:
- The elasticnet and the lasso (from the enet package) have been
added
- mars and fda models are now fit using the earth package. Instead of
using nk as a tuning parameter, these models now use the default nk from
the training set and tunes over nprune. This mimics the process used by
earth/mars/fda more closely.
- A bug was fixed with leave-one-out cross-validation.
- For some models, the calculations in the train function are much
more efficient. Wherever possible, caret tries to avoid re-fitting
models if it can get predictions from su...