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<h1 id="empatica-blood-volume-pulse">Empatica Blood Volume Pulse<a class="headerlink" href="#empatica-blood-volume-pulse" title="Permanent link">&para;</a></h1>
<p>Sensor parameters description for <code>[EMPATICA_BLOOD_VOLUME_PULSE]</code>:</p>
<table>
<thead>
<tr>
<th>Key&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>[CONTAINER]</code></td>
<td>Name of the CSV file containing blood volume pulse data that is compressed inside an Empatica zip file. Since these zip files are created <a href="https://support.empatica.com/hc/en-us/articles/201608896-Data-export-and-formatting-from-E4-connect-">automatically</a> by Empatica, there is no need to change the value of this attribute.</td>
</tr>
</tbody>
</table>
<h2 id="dbdp-provider">DBDP provider<a class="headerlink" href="#dbdp-provider" title="Permanent link">&para;</a></h2>
<div class="admonition info">
<p class="admonition-title">Available time segments and platforms</p>
<ul>
<li>Available for all time segments</li>
</ul>
</div>
<div class="admonition info">
<p class="admonition-title">File Sequence</p>
<div class="highlight"><pre><span></span><code>- data/raw/<span class="o">{</span>pid<span class="o">}</span>/empatica_blood_volume_pulse_raw.csv
- data/raw/<span class="o">{</span>pid<span class="o">}</span>/empatica_blood_volume_pulse_with_datetime.csv
- data/interim/<span class="o">{</span>pid<span class="o">}</span>/empatica_blood_volume_pulse_features/empatica_blood_volume_pulse_<span class="o">{</span>language<span class="o">}</span>_<span class="o">{</span>provider_key<span class="o">}</span>.csv
- data/processed/features/<span class="o">{</span>pid<span class="o">}</span>/empatica_blood_volume_pulse.csv
</code></pre></div>
</div>
<p>Parameters description for <code>[EMPATICA_BLOOD_VOLUME_PULSE][PROVIDERS][DBDP]</code>:</p>
<table>
<thead>
<tr>
<th>Key&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>[COMPUTE]</code></td>
<td>Set to <code>True</code> to extract <code>EMPATICA_BLOOD_VOLUME_PULSE</code> features from the <code>DBDP</code> provider</td>
</tr>
<tr>
<td><code>[FEATURES]</code></td>
<td>Features to be computed from blood volume pulse intraday data, see table below</td>
</tr>
</tbody>
</table>
<p>Features description for <code>[EMPATICA_BLOOD_VOLUME_PULSE][PROVIDERS][DBDP]</code>:</p>
<table>
<thead>
<tr>
<th>Feature</th>
<th>Units</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td>maxbvp</td>
<td>-</td>
<td>The maximum blood volume pulse during a time segment.</td>
</tr>
<tr>
<td>minbvp</td>
<td>-</td>
<td>The minimum blood volume pulse during a time segment.</td>
</tr>
<tr>
<td>avgbvp</td>
<td>-</td>
<td>The average blood volume pulse during a time segment.</td>
</tr>
<tr>
<td>medianbvp</td>
<td>-</td>
<td>The median of blood volume pulse during a time segment.</td>
</tr>
<tr>
<td>modebvp</td>
<td>-</td>
<td>The mode of blood volume pulse during a time segment.</td>
</tr>
<tr>
<td>stdbvp</td>
<td>-</td>
<td>The standard deviation of blood volume pulse during a time segment.</td>
</tr>
<tr>
<td>diffmaxmodebvp</td>
<td>-</td>
<td>The difference between the maximum and mode blood volume pulse during a time segment.</td>
</tr>
<tr>
<td>diffminmodebvp</td>
<td>-</td>
<td>The difference between the mode and minimum blood volume pulse during a time segment.</td>
</tr>
<tr>
<td>entropybvp</td>
<td>nats</td>
<td>Shannons entropy measurement based on blood volume pulse during a time segment.</td>
</tr>
</tbody>
</table>
<div class="admonition note">
<p class="admonition-title">Assumptions/Observations</p>
<p>For more information about BVP read <a href="https://support.empatica.com/hc/en-us/articles/360029719792-E4-data-BVP-expected-signal">this</a>.</p>
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