el-method</code>,
<code>[[&lt;-,section-method</code>,
<code>[[&lt;-,tidem-method</code>,
<code>[[&lt;-,topo-method</code>,
<code>[[&lt;-,windrose-method</code>,
<code>[[&lt;-,xbt-method</code></p>
<p>Other things related to cm data:
<code><a href="sub-sub-cm-method.html">[[,cm-method</a></code>,
<code><a href="applyMagneticDeclination-cm-method.html">applyMagneticDeclination,cm-method</a></code>,
<code><a href="as.cm.html">as.cm</a>()</code>,
<code><a href="cm.html">cm</a></code>,
<code><a href="cm-class.h