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<html><head><title>R: Plot SOM Fits</title>
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<table width="100%" summary="page for somgrid {class}"><tr><td>somgrid {class}</td><td align="right">R Documentation</td></tr></table>
<h2>Plot SOM Fits</h2>
<h3>Description</h3>
<p>
Plotting functions for SOM results.
</p>
<h3>Usage</h3>
<pre>
somgrid(xdim = 8, ydim = 6, topo = c("rectangular", "hexagonal"))
## S3 method for class 'somgrid':
plot(x, type = "p", ...)
## S3 method for class 'SOM':
plot(x, ...)
</pre>
<h3>Arguments</h3>
<table summary="R argblock">
<tr valign="top"><td><code>xdim, ydim</code></td>
<td>
dimensions of the grid</td></tr>
<tr valign="top"><td><code>topo</code></td>
<td>
the topology of the grid.</td></tr>
<tr valign="top"><td><code>x</code></td>
<td>
an object inheriting from class <code>"somgrid"</code> or <code>"SOM"</code>.</td></tr>
<tr valign="top"><td><code>type, ...</code></td>
<td>
graphical parameters.</td></tr>
</table>
<h3>Details</h3>
<p>
The class <code>"somgrid"</code> records the coordinates of the grid to be
used for (batch or on-line) SOM: this has a plot method.
</p>
<p>
The plot method for class <code>"SOM"</code> plots a <code><a href="../../graphics/html/stars.html">stars</a></code>
plot of the representative at each grid point.
</p>
<h3>Value</h3>
<p>
For <code>somgrid</code>, an object of class <code>"somgrid"</code>, a list with
components
</p>
<table summary="R argblock">
<tr valign="top"><td><code>pts</code></td>
<td>
a two-column matrix giving locations for the grid points.</td></tr>
<tr valign="top"><td><code>xdim, ydim, topo</code></td>
<td>
as in the arguments to <code>somgrid</code>.</td></tr>
</table>
<h3>References</h3>
<p>
Venables, W. N. and Ripley, B. D. (2002)
<EM>Modern Applied Statistics with S.</EM> Fourth edition. Springer.
</p>
<h3>See Also</h3>
<p>
<code><a href="batchSOM.html">batchSOM</a></code>, <code><a href="SOM.html">SOM</a></code>
</p>
<hr><div align="center">[Package <em>class</em> version 7.2-44 <a href="00Index.html">Index]</a></div>
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