<h2>org.das2.qds.math.fft.FFTUtil</h2><p></p>
<h2>FFTUtil( )</h2>
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<a name="fft"></a>
<h2>fft</h2>
fft( <a href='http://www-pw.physics.uiowa.edu/~jbf/autoplot/doc/org/das2/qds/math/fft/GeneralFFT.html'>org.das2.qds.math.fft.GeneralFFT</a> fft, <a href='http://www-pw.physics.uiowa.edu/~jbf/autoplot/doc/org/das2/qds/QDataSet.html'>QDataSet</a> vds, <a href='http://www-pw.physics.uiowa.edu/~jbf/autoplot/doc/org/das2/datum/Units.html'>Units</a> units ) &rarr; <a href='http://www-pw.physics.uiowa.edu/~jbf/autoplot/doc/org/das2/qds/math/fft/ComplexArray/Double.html'>org.das2.qds.math.fft.ComplexArray.Double</a>

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<h3>Parameters</h3>
fft - a GeneralFFT
<br>
vds - a QDataSet
<br>
units - an Units

<h3>Returns:</h3>
org.das2.qds.math.fft.ComplexArray.Double

<br><br>
<a href="https://github.com/autoplot/dev/search?q=fft&unscoped_q=fft">[search for examples]</a>
 <a href="https://github.com/autoplot/documentation/tree/master/javadoc/org/das2/qds/math/fft/FFTUtil.md">[view on GitHub]</a>
 <a href="http://www-pw.physics.uiowa.edu/~jbf/autoplot/javadoc2018/org/das2/qds/math/fft/FFTUtil.html#fft">[view on old javadoc]</a>
 <a href="https://sourceforge.net/p/autoplot/code/HEAD/tree/autoplot/trunk/QDataSet/src/org/das2/qds/math/fft/FFTUtil.java#l102">[view source]</a>
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<a name="fftPower"></a>
<h2>fftPower</h2>
fftPower( <a href='http://www-pw.physics.uiowa.edu/~jbf/autoplot/doc/org/das2/qds/math/fft/GeneralFFT.html'>org.das2.qds.math.fft.GeneralFFT</a> fft, <a href='http://www-pw.physics.uiowa.edu/~jbf/autoplot/doc/org/das2/qds/QDataSet.html'>QDataSet</a> vds ) &rarr; <a href='http://www-pw.physics.uiowa.edu/~jbf/autoplot/doc/org/das2/qds/QDataSet.html'>QDataSet</a>

<p></p>

<h3>Parameters</h3>
fft - a GeneralFFT
<br>
vds - a QDataSet

<h3>Returns:</h3>
org.das2.qds.QDataSet

<br><br>
<a href="https://github.com/autoplot/dev/search?q=fftPower&unscoped_q=fftPower">[search for examples]</a>
 <a href="https://github.com/autoplot/documentation/tree/master/javadoc/org/das2/qds/math/fft/FFTUtil.md">[view on GitHub]</a>
 <a href="http://www-pw.physics.uiowa.edu/~jbf/autoplot/javadoc2018/org/das2/qds/math/fft/FFTUtil.html#fftPower">[view on old javadoc]</a>
 <a href="https://sourceforge.net/p/autoplot/code/HEAD/tree/autoplot/trunk/QDataSet/src/org/das2/qds/math/fft/FFTUtil.java#l22">[view source]</a>
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fftPower( <a href='http://www-pw.physics.uiowa.edu/~jbf/autoplot/doc/org/das2/qds/math/fft/GeneralFFT.html'>org.das2.qds.math.fft.GeneralFFT</a> fft, <a href='http://www-pw.physics.uiowa.edu/~jbf/autoplot/doc/org/das2/qds/QDataSet.html'>QDataSet</a> vds, <a href='http://www-pw.physics.uiowa.edu/~jbf/autoplot/doc/org/das2/qds/QDataSet.html'>QDataSet</a> weights ) &rarr; <a href='http://www-pw.physics.uiowa.edu/~jbf/autoplot/doc/org/das2/qds/QDataSet.html'>QDataSet</a><br>
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<a name="getFrequencyDomainTags"></a>
<h2>getFrequencyDomainTags</h2>
getFrequencyDomainTags( double fs, int size ) &rarr; double[]

<p></p>

<h3>Parameters</h3>
fs - the sampling frequency
<br>
size - an int

<h3>Returns:</h3>
the frequencies of the bins
<br><br>
<a href="https://github.com/autoplot/dev/search?q=getFrequencyDomainTags&unscoped_q=getFrequencyDomainTags">[search for examples]</a>
 <a href="https://github.com/autoplot/documentation/tree/master/javadoc/org/das2/qds/math/fft/FFTUtil.md">[view on GitHub]</a>
 <a href="http://www-pw.physics.uiowa.edu/~jbf/autoplot/javadoc2018/org/das2/qds/math/fft/FFTUtil.html#getFrequencyDomainTags">[view on old javadoc]</a>
 <a href="https://sourceforge.net/p/autoplot/code/HEAD/tree/autoplot/trunk/QDataSet/src/org/das2/qds/math/fft/FFTUtil.java#l114">[view source]</a>
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<a name="getWindow10PercentEdgeCosine"></a>
<h2>getWindow10PercentEdgeCosine</h2>
getWindow10PercentEdgeCosine( int size ) &rarr; <a href='http://www-pw.physics.uiowa.edu/~jbf/autoplot/doc/org/das2/qds/QDataSet.html'>QDataSet</a>

<p></p>

<h3>Parameters</h3>
size - an int

<h3>Returns:</h3>
org.das2.qds.QDataSet

<br><br>
<a href="https://github.com/autoplot/dev/search?q=getWindow10PercentEdgeCosine&unscoped_q=getWindow10PercentEdgeCosine">[search for examples]</a>
 <a href="https://github.com/autoplot/documentation/tree/master/javadoc/org/das2/qds/math/fft/FFTUtil.md">[view on GitHub]</a>
 <a href="http://www-pw.physics.uiowa.edu/~jbf/autoplot/javadoc2018/org/das2/qds/math/fft/FFTUtil.html#getWindow10PercentEdgeCosine">[view on old javadoc]</a>
 <a href="https://sourceforge.net/p/autoplot/code/HEAD/tree/autoplot/trunk/QDataSet/src/org/das2/qds/math/fft/FFTUtil.java#l43">[view source]</a>
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<a name="getWindowUnity"></a>
<h2>getWindowUnity</h2>
getWindowUnity( int size ) &rarr; <a href='http://www-pw.physics.uiowa.edu/~jbf/autoplot/doc/org/das2/qds/QDataSet.html'>QDataSet</a>

<p></p>

<h3>Parameters</h3>
size - an int

<h3>Returns:</h3>
org.das2.qds.QDataSet

<br><br>
<a href="https://github.com/autoplot/dev/search?q=getWindowUnity&unscoped_q=getWindowUnity">[search for examples]</a>
 <a href="https://github.com/autoplot/documentation/tree/master/javadoc/org/das2/qds/math/fft/FFTUtil.md">[view on GitHub]</a>
 <a href="http://www-pw.physics.uiowa.edu/~jbf/autoplot/javadoc2018/org/das2/qds/math/fft/FFTUtil.html#getWindowUnity">[view on old javadoc]</a>
 <a href="https://sourceforge.net/p/autoplot/code/HEAD/tree/autoplot/trunk/QDataSet/src/org/das2/qds/math/fft/FFTUtil.java#l26">[view source]</a>
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