lazy.tree {lazy.tree}

R Documentation

lazy.tree: Some Decision Tree Functions for lazy boys and girls

Description

The following are the classes of the functions. Japanese help file: (lazy.tree_JPH)

Main Functions

• DecTree: Decision Tree main

• Divide: Divide a Set into Two Subsets

• quantify_x: Quantification of a Categorical Regressor

Utility Functions

• feature_imp_dt: Calculation of Feature Importance

• cuttree_dt: Cut a Tree

• print_hist_dt: Print the Division History

• node_info_dt: Definition of the Nodes at a Given Depth.

• print_leaf_dt: Print the Leaf Node Information

• predict_dt: Calculate Predicted Values

• summary_dt: Calculation of Fit Statistics

• plot_dt: Plot the Tree (requires icode package.)

• plot2d_dt: Plot the Border Lines in a Plane

• treesim_dt: Calculate the Similarity Index of Two Trees

Impufity Measures

• gini: Calculation of variouse impurity measures

Data

• univar: univariate x

• square: bivariate X

• square2: bivariate X

• square3: bivariate X

• rect: bivariate X

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