The mvpart Package - NexTag Supports Open Source Initiatives

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14 path.rpart Details Internal function that handles missing values when calling the function rpart. node.match Node.match Description Internal function for Rpart Details node.match is to be used only internally. path.rpart Follow Paths to Selected Nodes of an Rpart Object Description Returns a names list where each element contains the splits on the path from the root to the selected nodes. Usage path.rpart(tree, nodes, pretty=0, print.it=TRUE) Arguments tree nodes pretty print.it fitted model object of class rpart. This is assumed to be the result of some function that produces an object with the same named components as that returned by the rpart function. an integer vector containing indices (node numbers) of all nodes for which paths are desired. If missing, user selects nodes as described below. an integer denoting the extent to which factor levels in split labels will be abbreviated. A value of (0) signifies no abbreviation. A NULL, the default, signifies using elements of letters to represent the different factor levels. Logical. Denotes whether paths will be printed out as nodes are interactively selected. Irrelevant if nodes argument is supplied. Details <strong>The</strong> function has a required argument as an rpart object and a list of nodes as optional arguments. Omitting a list of nodes will cause the function to wait for the user to select nodes from the dendogram. It will return a list, with one component for each node specified or selected. <strong>The</strong> component contains the sequence of splits leading to that node. In the graphical interation, the individual paths are printed out as nodes are selected.
plot.rpart 15 Value A named (by node) list, each element of which contains all the splits on the path from the root to the specified or selected nodes. Graphical Interaction A dendrogram of the rpart object is expected to be visible on the graphics device, and a graphics input device (eg a mouse) is required. Clicking (the selection button) on a node selects that node. This process may be repeated any number of times. Clicking the exit button will stop the selection process and return the list of paths. References This function was modified from path.tree in S. See Also rpart Examples data(kyphosis) fit
Page 1 and 2: The mvpart Package February 16, 200
Page 3 and 4: cmds.diss 3 Usage data(car.test.fra
Page 5 and 6: descendants 5 descendants Descendan
Page 7 and 8: kyphosis 7 Value Should be intercha
Page 9 and 10: makeForm 9 Value collapse logical.
Page 11 and 12: model.frame.rpart 11 ylab y-axis la
Page 13: na.rpart 13 Value bars legend bord
Page 17 and 18: plotcp 17 plotcp Plot a Complexity
Page 19 and 20: predict.rpart 19 Side Effects a plo
Page 21 and 22: print.rpart 21 print.rpart Print an
Page 23 and 24: prune.rpart 23 Examples data(car.te
Page 25 and 26: part 25 Examples data(solder) fit
Page 27 and 28: part.anova 27 plot(z.auto); text(z.
Page 29 and 30: part.control 29 See Also rpart rpar
Page 31 and 32: part.exp 31 Value Returns a list co
Page 33 and 34: part.object 33 Value Returns a list
Page 35 and 36: part.pca 35 Arguments tree pts plt.
Page 37 and 38: pconvert 37 rpconvert Update an rpa
Page 39 and 40: snip.rpart 39 Note Common transform
Page 41 and 42: spider 41 Format This data frame co
Page 43 and 44: summary.rpart 43 summary.rpart Summ
Page 45 and 46: trclcomp 45 Side Effects See Also t
Page 47 and 48: xpred.rpart 47 dinf, eps, replace.n
Page 49 and 50: Index ∗Topic datasets car.test.fr

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