EVOLUTION-MANAGER
Edit File: PlantGrowth.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: Results from an Experiment on Plant Growth</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 PlantGrowth {datasets}"><tr><td>PlantGrowth {datasets}</td><td style="text-align: right;">R Documentation</td></tr></table> <h2>Results from an Experiment on Plant Growth</h2> <h3>Description</h3> <p>Results from an experiment to compare yields (as measured by dried weight of plants) obtained under a control and two different treatment conditions. </p> <h3>Usage</h3> <pre>PlantGrowth</pre> <h3>Format</h3> <p>A data frame of 30 cases on 2 variables. </p> <table summary="Rd table"> <tr> <td style="text-align: right;"> [, 1] </td><td style="text-align: left;"> weight </td><td style="text-align: left;"> numeric </td> </tr> <tr> <td style="text-align: right;"> [, 2] </td><td style="text-align: left;"> group </td><td style="text-align: left;"> factor </td> </tr> </table> <p>The levels of <code>group</code> are ‘ctrl’, ‘trt1’, and ‘trt2’. </p> <h3>Source</h3> <p>Dobson, A. J. (1983) <em>An Introduction to Statistical Modelling</em>. London: Chapman and Hall. </p> <h3>Examples</h3> <pre> ## One factor ANOVA example from Dobson's book, cf. Table 7.4: require(stats); require(graphics) boxplot(weight ~ group, data = PlantGrowth, main = "PlantGrowth data", ylab = "Dried weight of plants", col = "lightgray", notch = TRUE, varwidth = TRUE) anova(lm(weight ~ group, data = PlantGrowth)) </pre> <hr /><div style="text-align: center;">[Package <em>datasets</em> version 3.6.0 <a href="00Index.html">Index</a>]</div> </body></html>