📄 dissimilarity-methods.html

📁 R-Project是一个开源的统计软件,专门有一个R语言,类似S语言,这个包里面就是一个R实现的文本挖掘(text mining简称tm)的包.里面有代码和样本数据.

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<html><head><title>R: Methods for Function dissimilarity in Package &lsquo;tm&rsquo;</title>
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<table width="100%" summary="page for dissimilarity-methods {tm}"><tr><td>dissimilarity-methods {tm}</td><td align="right">R Documentation</td></tr></table>
<h2>Methods for Function dissimilarity in Package &lsquo;tm&rsquo;</h2>


<h3>Description</h3>

<p>
Methods for function <code>dissimilarity</code> in package <span class="pkg">tm</span>.
</p>


<h3>Methods</h3>

<dl>
<dt>x = "TermDocMatrix", y = "ANY", method = "character"</dt><dd>Computes the
dissimilarity between the documents in <code>x</code>
with the distance measure <code>method</code>. Any method accepted by
<code>dist</code> from package <span class="pkg">proxy</span> can be passed over.
</p>
<p>
Formally the dissimilarity is returned in form of a <code>dist</code>
object.
</dd>


<dt>x = "TextDocument", y = "TextDocument", method =
"character"</dt><dd>Computes the dissimilarity between <code>x</code> and <code>y</code>
with the distance measure <code>method</code>. Any method accepted by
<code>dist</code> from package <span class="pkg">proxy</span> can be passed over.</dd>
</dl>

<h3>Examples</h3>

<pre>
data("crude")
tdm &lt;- TermDocMatrix(crude)
dissimilarity(tdm, method = "cosine")
dissimilarity(crude[[1]], crude[[2]], method = "eJaccard")
</pre>



<hr><div align="center">[Package <em>tm</em> version 0.3 <a href="00Index.html">Index]</a></div>

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