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<html><head><title>R: Continuous Wavelet Transform with
derivative of Gaussian</title>
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<table width="100%" summary="page for DOG {Rwave}"><tr><td>DOG {Rwave}</td><td align="right">R Documentation</td></tr></table>
<h2>Continuous Wavelet Transform with
derivative of Gaussian</h2>
<h3>Description</h3>
<p>
Computes the continuous wavelet transform with for (complex-valued)
derivative of Gaussian wavelets.
</p>
<h3>Usage</h3>
<pre>
DOG(input, noctave, nvoice=1, moments, twoD=TRUE, plot=TRUE)
</pre>
<h3>Arguments</h3>
<table summary="R argblock">
<tr valign="top"><td><code>input</code></td>
<td>
input signal (possibly complex-valued).
</td></tr>
<tr valign="top"><td><code>noctave</code></td>
<td>
number of powers of 2 for the scale variable.
</td></tr>
<tr valign="top"><td><code>moments</code></td>
<td>
number of vanishing moments of the wavelet
(order of the derivative).
</td></tr>
<tr valign="top"><td><code>nvoice</code></td>
<td>
number of scales in each octave (i.e. between two
consecutive powers of 2)
</td></tr>
<tr valign="top"><td><code>twoD</code></td>
<td>
logical variable set to T to organize the
output as a 2D array
(signal_size x nb_scales), otherwise, the output is a 3D array
(signal_size x noctave x nvoice)
</td></tr>
<tr valign="top"><td><code>plot</code></td>
<td>
if set to T, display the modulus of the
continuous wavelet transform on the graphic device
</td></tr>
</table>
<h3>Details</h3>
<p>
The output contains the (complex) values of the wavelet transform of the
input signal.
The format of the output can be
</p>
<p>
2D array (signal_size x nb_scales)
</p>
<p>
3D array (signal_size x noctave x nvoice)
</p>
<h3>Value</h3>
<p>
continuous (complex) wavelet transform</p>
<h3>References</h3>
<p>
See discussions in the text of ``Practical Time-Frequency Analysis''.
</p>
<h3>See Also</h3>
<p>
<code><a href="cwt.html">cwt</a></code>, <code><a href="cwtp.html">cwtp</a></code>, <code><a href="cwtsquiz.html">cwtsquiz</a></code>,
<code><a href="cgt.html">cgt</a></code>.
</p>
<hr><div align="center">[Package <em>Rwave</em> version 1.24 <a href="00Index.html">Index]</a></div>
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