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| <title>pecg.Example — pecg documentation</title> | ||
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| <p class="caption" role="heading"><span class="caption-text">PECG API REFERENCE:</span></p> | ||
| <ul> | ||
| <li class="toctree-l1"><a class="reference internal" href="../../pecg.html">pecg package</a></li> | ||
| <li class="toctree-l1"><a class="reference internal" href="../../tutorials/pecg_analysis.html">ECG morphological analysis</a></li> | ||
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| <h1>Source code for pecg.Example</h1><div class="highlight"><pre> | ||
| <span></span><span class="kn">import</span> <span class="nn">numpy</span> <span class="k">as</span> <span class="nn">np</span> | ||
| <span class="kn">import</span> <span class="nn">wfdb</span> | ||
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| <div class="viewcode-block" id="load_example"><a class="viewcode-back" href="../../pecg.html#pecg.Example.load_example">[docs]</a><span class="k">def</span> <span class="nf">load_example</span><span class="p">(</span><span class="n">ecg_type</span><span class="p">:</span> <span class="nb">str</span> <span class="o">=</span> <span class="s1">''</span><span class="p">)</span> <span class="o">-></span> <span class="p">(</span><span class="n">np</span><span class="o">.</span><span class="n">array</span><span class="p">,</span> <span class="nb">int</span><span class="p">):</span> | ||
| <span class="sd">"""</span> | ||
| <span class="sd"> The load_example function loads an ECG signal from the PhysioNet open source datasets. There are three types of ECG</span> | ||
| <span class="sd"> that might be downloded: longe single lead ECG, '12-lead' and a Holter with two channels.</span> | ||
| <span class="sd"> </span> | ||
| <span class="sd"> :param ecg_type: The type of the signal that you would like download: 'single-lead', '12-lead' and 'Holter'.</span> | ||
| <span class="sd"> :return:</span> | ||
| <span class="sd"> * signal: the ECG signal as a ndarray, with shape (L, N) when L is the number of channels or leads and N is the number of samples.</span> | ||
| <span class="sd"> * fs: The sampling frequency of the signal [Hz].</span> | ||
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| <span class="sd"> .. code-block:: python</span> | ||
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| <span class="sd"> import pecg</span> | ||
| <span class="sd"> from pecg.Example import load_example</span> | ||
| <span class="sd"> signal, fs = load_example(ecg_type='12-lead')</span> | ||
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| <span class="sd"> """</span> | ||
| <span class="k">if</span> <span class="n">ecg_type</span> <span class="o">==</span> <span class="s1">'Holter'</span><span class="p">:</span> | ||
| <span class="n">signal</span><span class="p">,</span> <span class="n">fields</span> <span class="o">=</span> <span class="n">wfdb</span><span class="o">.</span><span class="n">rdsamp</span><span class="p">(</span><span class="s1">'100'</span><span class="p">,</span> <span class="n">pn_dir</span><span class="o">=</span><span class="s1">'mitdb'</span><span class="p">)</span> | ||
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| <span class="k">if</span> <span class="n">ecg_type</span> <span class="o">==</span> <span class="s1">'12-lead'</span><span class="p">:</span> | ||
| <span class="n">signal</span><span class="p">,</span> <span class="n">fields</span> <span class="o">=</span> <span class="n">wfdb</span><span class="o">.</span><span class="n">rdsamp</span><span class="p">(</span><span class="s1">'JS00001'</span><span class="p">,</span> <span class="n">pn_dir</span><span class="o">=</span><span class="s1">'ecg-arrhythmia/WFDBRecords/01/010'</span><span class="p">)</span> | ||
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| <span class="k">if</span> <span class="n">ecg_type</span> <span class="o">==</span> <span class="s1">'single-lead'</span><span class="p">:</span> | ||
| <span class="n">signal</span><span class="p">,</span> <span class="n">fields</span> <span class="o">=</span> <span class="n">wfdb</span><span class="o">.</span><span class="n">rdsamp</span><span class="p">(</span><span class="s1">'a01'</span><span class="p">,</span> <span class="n">pn_dir</span><span class="o">=</span><span class="s1">'apnea-ecg'</span><span class="p">)</span> | ||
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| <span class="n">signal</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">transpose</span><span class="p">(</span><span class="n">signal</span><span class="p">)</span> | ||
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| <span class="k">return</span> <span class="n">signal</span><span class="p">,</span> <span class="n">fields</span><span class="p">[</span><span class="s1">'fs'</span><span class="p">]</span></div> | ||
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| <span class="n">a</span> <span class="o">=</span> <span class="mi">5</span> | ||
| </pre></div> | ||
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| © Copyright 2021, Sheina. | ||
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