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<html><head><title>R: Dyadic Wavelet Transform</title>
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<table width="100%" summary="page for mw {Rwave}"><tr><td>mw {Rwave}</td><td align="right">R Documentation</td></tr></table>
<h2>Dyadic Wavelet Transform</h2>


<h3>Description</h3>

<p>
Dyadic wavelet transform, with Mallat's wavelet.
The reconstructed signal preserves locations and values at extrema.
</p>


<h3>Usage</h3>

<pre>
mw(inputdata, maxresoln, filtername="Gaussian1", scale=FALSE, plot=TRUE)
</pre>


<h3>Arguments</h3>

<table summary="R argblock">
<tr valign="top"><td><code>inputdata</code></td>
<td>
either a text file or an <font face="Courier New,Courier" color="#666666"><b>R</b></font> object containing data.
</td></tr>
<tr valign="top"><td><code>maxresoln</code></td>
<td>
number of decomposition scales.
</td></tr>
<tr valign="top"><td><code>filtername</code></td>
<td>
name of filter (either Gaussian1 for Mallat and Zhong's wavelet or
Haar wavelet).
</td></tr>
<tr valign="top"><td><code>scale</code></td>
<td>
when set, the wavelet transform at each scale is plotted 
with the same scale.
</td></tr>
<tr valign="top"><td><code>plot</code></td>
<td>
indicate if the wavelet transform at each
scale will be plotted.
</td></tr>
</table>

<h3>Details</h3>

<p>
The decomposition goes from resolution 1 to the given maximum resolution.
</p>


<h3>Value</h3>

<p>
Structure containing
</p>
<table summary="R argblock">
<tr valign="top"><td><code>original</code></td>
<td>
original signal.
</td></tr>
<tr valign="top"><td><code>Wf</code></td>
<td>
dyadic wavelet transform of signal.
</td></tr>
<tr valign="top"><td><code>Sf</code></td>
<td>
multiresolution of signal.
</td></tr>
<tr valign="top"><td><code>maxresoln</code></td>
<td>
number of decomposition scales.
</td></tr>
<tr valign="top"><td><code>np</code></td>
<td>
size of signal.
</td></tr>
</table>

<h3>References</h3>

<p>
See discussions in the text of ``Practical Time-Frequency Analysis''.
</p>


<h3>See Also</h3>

<p>
<code><a href="dwinverse.html">dwinverse</a></code>, <code><a href="mrecons.html">mrecons</a></code>, <code><a href="ext.html">ext</a></code>.
</p>



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