EVOLUTION-MANAGER
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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: Determine the number of QTL in a QTL object</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 nqtl {qtl}"><tr><td>nqtl {qtl}</td><td style="text-align: right;">R Documentation</td></tr></table> <h2>Determine the number of QTL in a QTL object</h2> <h3>Description</h3> <p>Determine the number of QTL in a QTL object. </p> <h3>Usage</h3> <pre> nqtl(qtl) </pre> <h3>Arguments</h3> <table summary="R argblock"> <tr valign="top"><td><code>qtl</code></td> <td> <p>An object of class <code>qtl</code>. See <code><a href="makeqtl.html">makeqtl</a></code> for details.</p> </td></tr> </table> <h3>Value</h3> <p>The number of QTL in the input QTL object. </p> <h3>Author(s)</h3> <p>Karl W Broman, <a href="mailto:broman@wisc.edu">broman@wisc.edu</a> </p> <h3>See Also</h3> <p><code><a href="makeqtl.html">makeqtl</a></code>, <code><a href="fitqtl.html">fitqtl</a></code>, <code><a href="dropfromqtl.html">dropfromqtl</a></code>, <code><a href="replaceqtl.html">replaceqtl</a></code>, <code><a href="addtoqtl.html">addtoqtl</a></code>, <code><a href="summary.qtl.html">summary.qtl</a></code>, <code><a href="reorderqtl.html">reorderqtl</a></code> </p> <h3>Examples</h3> <pre> data(fake.f2) # take out several QTLs and make QTL object qc <- c("1", "6", "13") qp <- c(25.8, 33.6, 18.63) fake.f2 <- subset(fake.f2, chr=qc) fake.f2 <- calc.genoprob(fake.f2, step=2, err=0) qtl <- makeqtl(fake.f2, qc, qp, what="prob") nqtl(qtl) </pre> <hr /><div style="text-align: center;">[Package <em>qtl</em> version 1.66 <a href="00Index.html">Index</a>]</div> </body></html>