solder


  Same data as in rpart:
  The <code>solder</code> data frame has 720 rows and 6 columns, representing
  a balanced subset of a designed experiment varying 5 factors on the
  soldering of components on printed-circuit boards.


datasets

This package is based on the code of the rpart package.
It extends rpart by adding additional splitting methods
emphasizing interpretable/parsimonious trees.  Unless indicated
otherwise, it is safe to assume that all functions herein are
extensions of or copied directly from similar or nearly
identical rpart methods.  As such, the authors of rpart are
authors of this package as well.  However, please direct any
error reports or other questions about itree to the maintainer
of this package; they are welcome and appreciated.

Alex Goldstein

itree

Tools for classification and regression trees, with an emphasis
on interpretability.

solder function

This data frame contains the following columns:
<dl>
<dt><code>Opening</code></dt><dd>
a factor with levels
<code>L</code> 
<code>M</code> 
<code>S</code>
indicating the amount of clearance around the mounting pad.
</dd> <dt><code>Solder</code></dt><dd>
a factor with levels
<code>Thick</code> 
<code>Thin</code>
giving the thickness of the solder used.
</dd> <dt><code>Mask</code></dt><dd>
a factor with levels
<code>A1.5</code> 
<code>A3</code> 
<code>B3</code> 
<code>B6</code>
indicating the type and thickness of mask used.
</dd> <dt><code>PadType</code></dt><dd>
a factor with levels
<code>D4</code> 
<code>D6</code> 
<code>D7</code> 
<code>L4</code> 
<code>L6</code> 
<code>L7</code> 
<code>L8</code> 
<code>L9</code> 
<code>W4</code> 
<code>W9</code>
giving the size and geometry of the mounting pad.
</dd> <dt><code>Panel</code></dt><dd>
 <code>1:3</code> indicating the panel on a board being tested.
</dd> <dt><code>skips</code></dt><dd>
a numeric vector giving the number of visible solder skips.
</dd> </dl>

Format

John M. Chambers and Trevor J. Hastie eds. (1992)
  <em>Statistical Models in S</em>, Wadsworth and Brooks/Cole,
  Pacific Grove, CA 1992.

solder: Soldering of Components on Printed-Circuit Boards

Description

Usage

Arguments

Format

Source

Examples