snip.tree

<code>snip.tree</code> has two related functions. If <code>nodes</code> is
 supplied, it removes those nodes and all their descendants from the
 tree.
If <code>nodes</code> is not supplied, the user is invited to select nodes
 interactively; this makes sense only if the tree has already been
 plotted. A node is selected by clicking with the left mouse button;
 its number and the deviance of the current tree and that which would
 remain if that node were removed are printed. Selecting the same node
 again causes it to be removed (and the lines of its sub-tree erased).
 Clicking any other button terminates the selection process.

tree

Brian Ripley

Classification and Regression Trees

snip.tree function

<dl> <dt>tree</dt>
<dd>An object of class <code>"tree"</code>.</dd> <dt>nodes</dt>
<dd>An integer vector giving those nodes that are the roots of
 sub-trees to be snipped off. If missing, the user is invited to
 select a node at which to snip.</dd> <dt>xy.save</dt>
<dd>If true, the <code>x</code> and <code>y</code> coordinates selected
 interactively are saved as attribute <code>.xy</code> of the returned value.</dd> <dt>digits</dt>
<dd>Precision used in printing statistics for selected nodes.</dd></dl>

Arguments

Author

Snip Parts of Tree Objects — snip.tree

<dl>

 <dt>tree</dt>
<dd>An object of class <code>"tree"</code>.</dd>

 <dt>nodes</dt>
<dd>An integer vector giving those nodes that are the roots of
 sub-trees to be snipped off. If missing, the user is invited to
 select a node at which to snip.</dd>

 <dt>xy.save</dt>
<dd>If true, the <code>x</code> and <code>y</code> coordinates selected
 interactively are saved as attribute <code>.xy</code> of the returned value.</dd>

 <dt>digits</dt>
<dd>Precision used in printing statistics for selected nodes.</dd>

</dl>

snip.tree: Snip Parts of Tree Objects

Description

Usage

Value

Arguments

Author

See Also