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author Daniele Nicolodi <nicolodi@science.unitn.it>
date Mon, 05 Dec 2011 16:20:06 +0100
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<table border="0" summary="Simple list" class="simplelist_nottable_last">
  <tr>
    <td>
      <a href="constructor_examples_fsdata.html#empty">Construct empty FSDATA object</a>
    </td>
  </tr>
  <tr>
    <td>
      <a href="constructor_examples_fsdata.html#xml_file">Construct a FSDATA object by loading the object from a file</a>
    </td>
  </tr>
  <tr>
    <td>
      <a href="constructor_examples_fsdata.html#data_vector">Construct a FSDATA object from a data vector</a>
    </td>
  </tr>
  <tr>
    <td>
      <a href="constructor_examples_fsdata.html#data_freq_vector">Construct a FSDATA object from a data vector and frequency vector</a>
    </td>
  </tr>
  <tr>
    <td>
      <a href="constructor_examples_fsdata.html#data_frequency">Construct a FSDATA object from a data vector and the corresponding frequency</a>
    </td>
  </tr>
  <tr>
    <td>
      <a href="constructor_examples_fsdata.html#all">Construct a FSDATA object from a data vector, frequency vector and the corresponding frequency</a>
    </td>
  </tr>
</table>
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<hr>
<h2 class="title"><a name="empty"></a>Construct empty FSDATA object</h2>
<p>The following example creates an empty fsdata object</p>
<div class="fragment"><pre class="programlisting">
f1 = fsdata()
----------- fsdata 01 -----------

  name:  None
    fs:  0
     x:  [0 0], double
     y:  [0 0], double
xunits:  Hz
yunits:
---------------------------------
</pre></div>

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<hr>
<h2 class="title"><a name="xml_file"></a>Construct a FSDATA object by loading the object from a file</h2>
<p>The following example creates a new fsdata object by loading the fsdata object from disk.</p>
<div class="fragment"><pre class="programlisting">
f1 = fsdata(<span class="string">'f1.mat'</span>)
f1 = fsdata(<span class="string">'f1.xml'</span>)
</pre></div>

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<hr>
<h2 class="title"><a name="data_vector"></a>Construct a FSDATA object from a data vector</h2>
<p>creates a frequency-series object with the given y-data. Sample rate of the data is assumed to be 1Hz.</p>
<div class="fragment"><pre class="programlisting">
y  = randn(1000,1);

f1 = fsdata(y)
</pre></div>

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<hr>
<h2 class="title"><a name="data_freq_vector"></a>Construct a FSDATA object from a data vector and frequency vector</h2>
<p>creates a frequency-series object with the given (x,y)-data. The sample rate is then set as 2*x(end).</p>
<div class="fragment"><pre class="programlisting">
fs = 10;
x  = linspace(0, fs/2, 1000);
y  = randn(1000,1);

f1 = fsdata(x,y)
</pre></div>

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<hr>
<h2 class="title"><a name="data_frequency"></a>Construct a FSDATA object from a data vector and the corresponding frequency</h2>
<p>creates a frequency-series object with the given y-data and sample rate. The frequency vector is grown assuming the first y sample corresponds to 0Hz and the last sample corresponds to the Nyquist frequency.</p>
<div class="fragment"><pre class="programlisting">
y = randn(1000,1);
fs = 100;

f1 = fsdata(y,fs)
</pre></div>

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<hr>
<h2 class="title"><a name="all"></a>Construct a FSDATA object from a data vector, frequency vector and the corresponding frequency</h2>
<p>creates a frequency-series object with the given x,y-data and sample rate.</p>
<div class="fragment"><pre class="programlisting">
fs = 10;
x  = linspace(0, fs/2, 1000);
y  = randn(1000,1);

f1 = fsdata(x,y,fs);
</pre></div>

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