<h2>org.das2.qds.math.fft.FFTUtil</h2><p></p> <h2>FFTUtil( )</h2> <p></p> <hr> <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 ) → <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> <p></p> <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> <br> <br> <hr> <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 ) → <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> <br> <br> 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 ) → <a href='http://www-pw.physics.uiowa.edu/~jbf/autoplot/doc/org/das2/qds/QDataSet.html'>QDataSet</a><br> <hr> <a name="getFrequencyDomainTags"></a> <h2>getFrequencyDomainTags</h2> getFrequencyDomainTags( double fs, int size ) → 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> <br> <br> <hr> <a name="getWindow10PercentEdgeCosine"></a> <h2>getWindow10PercentEdgeCosine</h2> getWindow10PercentEdgeCosine( int size ) → <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> <br> <br> <hr> <a name="getWindowUnity"></a> <h2>getWindowUnity</h2> getWindowUnity( int size ) → <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> <br> <br>