EVOLUTION-MANAGER
Edit File: Earthquake.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: Earthquake Intensity</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 Earthquake {nlme}"><tr><td>Earthquake {nlme}</td><td style="text-align: right;">R Documentation</td></tr></table> <h2>Earthquake Intensity</h2> <h3>Description</h3> <p>The <code>Earthquake</code> data frame has 182 rows and 5 columns. </p> <h3>Format</h3> <p>This data frame contains the following columns: </p> <dl> <dt>Quake</dt><dd> <p>an ordered factor with levels <code>20</code> < <code>16</code> < <code>14</code> < <code>10</code> < <code>3</code> < <code>8</code> < <code>23</code> < <code>22</code> < <code>6</code> < <code>13</code> < <code>7</code> < <code>21</code> < <code>18</code> < <code>15</code> < <code>4</code> < <code>12</code> < <code>19</code> < <code>5</code> < <code>9</code> < <code>1</code> < <code>2</code> < <code>17</code> < <code>11</code> indicating the earthquake on which the measurements were made. </p> </dd> <dt>Richter</dt><dd> <p>a numeric vector giving the intensity of the earthquake on the Richter scale. </p> </dd> <dt>distance</dt><dd> <p>the distance from the seismological measuring station to the epicenter of the earthquake (km). </p> </dd> <dt>soil</dt><dd> <p>a factor with levels <code>0</code> and <code>1</code> giving the soil condition at the measuring station, either soil or rock. </p> </dd> <dt>accel</dt><dd> <p>maximum horizontal acceleration observed (g). </p> </dd> </dl> <h3>Details</h3> <p>Measurements recorded at available seismometer locations for 23 large earthquakes in western North America between 1940 and 1980. They were originally given in Joyner and Boore (1981); are mentioned in Brillinger (1987); and are analyzed in Davidian and Giltinan (1995). </p> <h3>Source</h3> <p>Pinheiro, J. C. and Bates, D. M. (2000), <em>Mixed-Effects Models in S and S-PLUS</em>, Springer, New York. (Appendix A.8) </p> <p>Davidian, M. and Giltinan, D. M. (1995), <em>Nonlinear Models for Repeated Measurement Data</em>, Chapman and Hall, London. </p> <p>Joyner and Boore (1981), Peak horizontal acceleration and velocity from strong-motion records including records from the 1979 Imperial Valley, California, earthquake, <em>Bulletin of the Seismological Society of America</em>, <b>71</b>, 2011-2038. </p> <p>Brillinger, D. (1987), Comment on a paper by C. R. Rao, <em>Statistical Science</em>, <b>2</b>, 448-450. </p> <hr /><div style="text-align: center;">[Package <em>nlme</em> version 3.1-139 <a href="00Index.html">Index</a>]</div> </body></html>