Description Usage Arguments Details Value Author(s) See Also

An rpart regression tree carries the deviance around (in the frame$dev element). This function computes the deviance for classification trees.

1 | ```
rp.deviance(x, ...)
``` |

`x` |
An object of class rpart |

`...` |
Other arguments, currently unused. |

For a vector of leaf counts n whose sum is N, the deviance is (-2) times the sum of n log (n/N), taking 0 log 0 as 0.

Vector of deviances for every row in the tree's frame.

Sam Buttrey

rpart

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