kyphosis

The <code>kyphosis</code> data frame has 81 rows and 4 columns.
 representing data on children who have had corrective spinal surgery

datasets

Recursive partitioning for classification,
regression and survival trees.  An implementation of most of the
functionality of the 1984 book by Breiman, Friedman, Olshen and Stone.

Beth Atkinson

rpart

Recursive Partitioning and Regression Trees

Terry Therneau

Brian Ripley

kyphosis function

This data frame contains the following columns:<dl>
<dt><code>Kyphosis</code></dt>
<dd>a factor with levels
<code>absent</code> 
<code>present</code>
indicating if a kyphosis (a type of deformation)
was present after the operation.</dd><dt><code>Age</code></dt>
<dd>in months</dd><dt><code>Number</code></dt>
<dd>the number of vertebrae involved</dd><dt><code>Start</code></dt>
<dd>the number of the first (topmost) vertebra operated on.</dd>
</dl>

Format

Data on Children who have had Corrective Spinal Surgery — kyphosis

This data frame contains the following columns:<dl>
<dt><code>Kyphosis</code></dt>
<dd>a factor with levels
<code>absent</code> 
<code>present</code>
indicating if a kyphosis (a type of deformation)
was present after the operation.</dd>

<dt><code>Age</code></dt>
<dd>in months</dd>

<dt><code>Number</code></dt>
<dd>the number of vertebrae involved</dd>

<dt><code>Start</code></dt>
<dd>the number of the first (topmost) vertebra operated on.</dd>


</dl>

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kyphosis: Data on Children who have had Corrective Spinal Surgery

Description

Usage

Arguments

Format

Examples