EVOLUTION-MANAGER
Edit File: solder.balance.html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><title>R: Soldering of Components on Printed-Circuit Boards</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <link rel="stylesheet" type="text/css" href="R.css" /> </head><body> <table width="100%" summary="page for solder.balance {rpart}"><tr><td>solder.balance {rpart}</td><td style="text-align: right;">R Documentation</td></tr></table> <h2>Soldering of Components on Printed-Circuit Boards</h2> <h3>Description</h3> <p>The <code>solder.balance</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. </p> <p>The <code>solder</code> data frame is the full version of the data with 900 rows. It is located in both the rpart and the survival packages. </p> <h3>Usage</h3> <pre> solder </pre> <h3>Format</h3> <p>This data frame contains the following columns: </p> <dl> <dt><code>Opening</code></dt><dd> <p>a factor with levels <span class="samp">L</span>, <span class="samp">M</span> and <span class="samp">S</span> indicating the amount of clearance around the mounting pad. </p> </dd> <dt><code>Solder</code></dt><dd> <p>a factor with levels <span class="samp">Thick</span> and <span class="samp">Thin</span> giving the thickness of the solder used. </p> </dd> <dt><code>Mask</code></dt><dd> <p>a factor with levels <span class="samp">A1.5</span>, <span class="samp">A3</span>, <span class="samp">B3</span> and <span class="samp">B6</span> indicating the type and thickness of mask used. </p> </dd> <dt><code>PadType</code></dt><dd> <p>a factor with levels <span class="samp">D4</span>, <span class="samp">D6</span>, <span class="samp">D7</span>, <span class="samp">L4</span>, <span class="samp">L6</span>, <span class="samp">L7</span>, <span class="samp">L8</span>, <span class="samp">L9</span>, <span class="samp">W4</span> and <span class="samp">W9</span> giving the size and geometry of the mounting pad. </p> </dd> <dt><code>Panel</code></dt><dd> <p><code>1:3</code> indicating the panel on a board being tested. </p> </dd> <dt><code>skips</code></dt><dd> <p>a numeric vector giving the number of visible solder skips. </p> </dd> </dl> <h3>Source</h3> <p>John M. Chambers and Trevor J. Hastie eds. (1992) <em>Statistical Models in S</em>, Wadsworth and Brooks/Cole, Pacific Grove, CA. </p> <h3>Examples</h3> <pre> fit <- rpart(skips ~ Opening + Solder + Mask + PadType + Panel, data = solder.balance, method = "anova") summary(residuals(fit)) plot(predict(fit), residuals(fit)) </pre> <hr /><div style="text-align: center;">[Package <em>rpart</em> version 4.1-15 <a href="00Index.html">Index</a>]</div> </body></html>