related to cm data:
<code><a href="sub-sub-cm-method.html">[[,cm-method</a></code>,
<code>[[&lt;-,cm-method</code>,
<code><a href="as.cm.html">as.cm</a>()</code>,
<code><a href="cm.html">cm</a></code>,
<code><a href="cm-class.html">cm-class</a></code>,
<code><a href="plot-cm-method.html">plot,cm-method</a></code>,
<code><a href="read.cm.html">read.cm</a>()</code>,
<code><a href="rotateAboutZ.html">rotateAboutZ</a>()</code>,
<code><a href="subset-cm-method.html">subset,cm-method</a></code>,
<code><a href="su