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<!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: Plot Cumulative Periodogram</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 cpgram {stats}"><tr><td>cpgram {stats}</td><td style="text-align: right;">R Documentation</td></tr></table> <h2> Plot Cumulative Periodogram </h2> <h3>Description</h3> <p>Plots a cumulative periodogram. </p> <h3>Usage</h3> <pre> cpgram(ts, taper = 0.1, main = paste("Series: ", deparse(substitute(ts))), ci.col = "blue") </pre> <h3>Arguments</h3> <table summary="R argblock"> <tr valign="top"><td><code>ts</code></td> <td> <p>a univariate time series</p> </td></tr> <tr valign="top"><td><code>taper</code></td> <td> <p>proportion tapered in forming the periodogram</p> </td></tr> <tr valign="top"><td><code>main</code></td> <td> <p>main title</p> </td></tr> <tr valign="top"><td><code>ci.col</code></td> <td> <p>colour for confidence band.</p> </td></tr> </table> <h3>Value</h3> <p>None. </p> <h3>Side Effects</h3> <p>Plots the cumulative periodogram in a square plot. </p> <h3>Note</h3> <p>From package <a href="https://CRAN.R-project.org/package=MASS"><span class="pkg">MASS</span></a>. </p> <h3>Author(s)</h3> <p>B.D. Ripley</p> <h3>Examples</h3> <pre> require(graphics) par(pty = "s", mfrow = c(1,2)) cpgram(lh) lh.ar <- ar(lh, order.max = 9) cpgram(lh.ar$resid, main = "AR(3) fit to lh") cpgram(ldeaths) </pre> <hr /><div style="text-align: center;">[Package <em>stats</em> version 3.6.0 <a href="00Index.html">Index</a>]</div> </body></html>