apexcharter/reference/add_event.html

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<img src="" class="logo" alt=""><h1>Add an event to a chart</h1>
<small class="dont-index">Source: <a href="https://github.com/dreamRs/apexcharter/blob/HEAD/R/annotations.R" class="external-link"><code>R/annotations.R</code></a></small>
<div class="d-none name"><code>add_event.Rd</code></div>
</div>
<div class="ref-description section level2">
<p>Add a vertical line to mark a special event on a chart.</p>
</div>
<div class="section level2">
<h2 id="ref-usage">Usage<a class="anchor" aria-label="anchor" href="#ref-usage"></a></h2>
<div class="sourceCode"><pre class="sourceCode r"><code><span><span class="fu">add_event</span><span class="op">(</span><span class="va">ax</span>, <span class="va">when</span>, color <span class="op">=</span> <span class="st">"#E41A1C"</span>, dash <span class="op">=</span> <span class="fl">4</span>, label <span class="op">=</span> <span class="cn">NULL</span>, <span class="va">...</span><span class="op">)</span></span></code></pre></div>
</div>
<div class="section level2">
<h2 id="arguments">Arguments<a class="anchor" aria-label="anchor" href="#arguments"></a></h2>
<dl><dt>ax</dt>
<dd><p>An <code><a href="apexchart.html">apexchart()</a></code> <code>htmlwidget</code> object.</p></dd>
<dt>when</dt>
<dd><p>Vector of position to place the event.</p></dd>
<dt>color</dt>
<dd><p>Color of the line.</p></dd>
<dt>dash</dt>
<dd><p>Creates dashes in borders of SVG path.
A higher number creates more space between dashes in the border.
Use <code>0</code> for plain line.</p></dd>
<dt>label</dt>
<dd><p>Add a label to the shade, use a <code>character</code>
or see <code><a href="label.html">label</a></code> for more controls.</p></dd>
<dt>...</dt>
<dd><p>Additional arguments, see
<a href="https://apexcharts.com/docs/options/annotations/" class="external-link">https://apexcharts.com/docs/options/annotations/</a> for possible options.</p></dd>
</dl></div>
<div class="section level2">
<h2 id="value">Value<a class="anchor" aria-label="anchor" href="#value"></a></h2>
<p>An <code><a href="apexchart.html">apexchart()</a></code></p>
<p></p>
<p><code>htmlwidget</code> object.</p>
</div>
<div class="section level2">
<h2 id="see-also">See also<a class="anchor" aria-label="anchor" href="#see-also"></a></h2>
<div class="dont-index"><p><code><a href="add_event_marker.html">add_event_marker</a></code> to add a point.</p></div>
</div>
<div class="section level2">
<h2 id="ref-examples">Examples<a class="anchor" aria-label="anchor" href="#ref-examples"></a></h2>
<div class="sourceCode"><pre class="sourceCode r"><code><span class="r-in"><span><span class="kw"><a href="https://rdrr.io/r/base/library.html" class="external-link">library</a></span><span class="op">(</span><span class="va"><a href="https://github.com/dreamRs/apexcharter" class="external-link">apexcharter</a></span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/utils/data.html" class="external-link">data</a></span><span class="op">(</span><span class="st">"consumption"</span><span class="op">)</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="co"># specify from and to date</span></span></span>
<span class="r-in"><span><span class="fu"><a href="apex.html">apex</a></span><span class="op">(</span><span class="va">consumption</span>, <span class="fu"><a href="apexcharter-exports.html">aes</a></span><span class="op">(</span><span class="va">date</span>, <span class="va">value</span>, group <span class="op">=</span> <span class="va">type</span><span class="op">)</span>, <span class="st">"spline"</span><span class="op">)</span> <span class="op"><a href="apexcharter-exports.html">%&gt;%</a></span> </span></span>
<span class="r-in"><span> <span class="fu">add_event</span><span class="op">(</span>when <span class="op">=</span> <span class="st">"2020-01-11"</span><span class="op">)</span></span></span>
<div id="htmlwidget-da0b268a2927f570ebf3" style="width:700px;height:432.632880098888px;" class="apexcharter html-widget"></div>
<script type="application/json" data-for="htmlwidget-da0b268a2927f570ebf3">{"x":{"ax_opts":{"chart":{"type":"line"},"series":[{"name":"Realised","type":"line","data":[[1577836800000,1445],[1577923200000,1545],[1578009600000,1501],[1578096000000,1444],[1578182400000,1443],[1578268800000,1659],[1578355200000,1631],[1578441600000,1558],[1578528000000,1510],[1578614400000,1545],[1578700800000,1478],[1578787200000,1453],[1578873600000,1614],[1578960000000,1594],[1579046400000,1565],[1579132800000,1543],[1579219200000,1539],[1579305600000,1498],[1579392000000,1520],[1579478400000,1744],[1579564800000,1792],[1579651200000,1805],[1579737600000,1798],[1579824000000,1760],[1579910400000,1593],[1579996800000,1469],[1580083200000,1616],[1580169600000,1637],[1580256000000,1619],[1580342400000,1594],[1580428800000,1462],[1580515200000,1314],[1580601600000,1247],[1580688000000,1385],[1580774400000,1511],[1580860800000,1588],[1580947200000,1636],[1581033600000,1628],[1581120000000,1430],[1581206400000,1352],[1581292800000,1470],[1581379200000,1534],[1581465600000,1572],[1581552000000,1597],[1581638400000,1512],[1581724800000,1361],[1581811200000,1258],[1581897600000,1448],[1581984000000,1523],[1582070400000,1547],[1582156800000,1521],[1582243200000,1535],[1582329600000,1387],[1582416000000,1276],[1582502400000,1403],[1582588800000,1464],[1582675200000,1591],[1582761600000,1631],[1582848000000,1601],[1582934400000,1400]]},{"name":"Forecast D-1","type":"line","data":[[1577836800000,1481],[1577923200000,1577],[1578009600000,1553],[1578096000000,1463],[1578182400000,1459],[1578268800000,1681],[1578355200000,1652],[1578441600000,1569],[1578528000000,1512],[1578614400000,1520],[1578700800000,1467],[1578787200000,1457],[1578873600000,1630],[1578960000000,1603],[1579046400000,1563],[1579132800000,1570],[1579219200000,1545],[1579305600000,1490],[1579392000000,1520],[1579478400000,1754],[1579564800000,1814],[1579651200000,1804],[1579737600000,1786],[1579824000000,1756],[1579910400000,1614],[1579996800000,1516],[1580083200000,1644],[1580169600000,1645],[1580256000000,1629],[1580342400000,1617],[1580428800000,1489],[1580515200000,1305],[1580601600000,1226],[1580688000000,1421],[1580774400000,1501],[1580860800000,1589],[1580947200000,1650],[1581033600000,1648],[1581120000000,1474],[1581206400000,1326],[1581292800000,1477],[1581379200000,1527],[1581465600000,1601],[1581552000000,1576],[1581638400000,1518],[1581724800000,1358],[1581811200000,1235],[1581897600000,1459],[1581984000000,1542],[1582070400000,1568],[1582156800000,1540],[1582243200000,1528],[1582329600000,1391],[1582416000000,1282],[1582502400000,1437],[1582588800000,1487],[1582675200000,1553],[1582761600000,1598],[1582848000000,1611],[1582934400000,1391]]}],"dataLabels":{"enabled":false},"stroke":{"curve":"smooth","width":2},"yaxis":{"decimalsInFloat":2,"labels":{"style":{"colors":"#848484"}}},"xaxis":{"type":"datetime","labels":{"style":{"colors":"#848484"}}},"annotations":{"position":"back","xaxis":[{"x":"new Date('2020-01-11').getTime()","borderColor":"#E41A1C","strokeDashArray":4}]}},"auto_update":{"series_animate":true,"update_options":false,"options_animate":true,"options_redrawPaths":true,"update_synced_charts":false},"sparkbox":false,"xaxis":{"min":"2020-01-01","max":"2020-02-29"},"type":"spline"},"evals":["ax_opts.annotations.xaxis.0.x"],"jsHooks":[]}</script><span class="r-in"><span></span></span>
<span class="r-in"><span><span class="co"># several events</span></span></span>
<span class="r-in"><span><span class="fu"><a href="apex.html">apex</a></span><span class="op">(</span><span class="va">consumption</span>, <span class="fu"><a href="apexcharter-exports.html">aes</a></span><span class="op">(</span><span class="va">date</span>, <span class="va">value</span>, group <span class="op">=</span> <span class="va">type</span><span class="op">)</span>, <span class="st">"spline"</span><span class="op">)</span> <span class="op"><a href="apexcharter-exports.html">%&gt;%</a></span> </span></span>
<span class="r-in"><span> <span class="fu">add_event</span><span class="op">(</span>when <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"2020-01-11"</span>, <span class="st">"2020-01-29"</span><span class="op">)</span><span class="op">)</span></span></span>
<div id="htmlwidget-0ed12bb554391c49c2e3" style="width:700px;height:432.632880098888px;" class="apexcharter html-widget"></div>
<script type="application/json" data-for="htmlwidget-0ed12bb554391c49c2e3">{"x":{"ax_opts":{"chart":{"type":"line"},"series":[{"name":"Realised","type":"line","data":[[1577836800000,1445],[1577923200000,1545],[1578009600000,1501],[1578096000000,1444],[1578182400000,1443],[1578268800000,1659],[1578355200000,1631],[1578441600000,1558],[1578528000000,1510],[1578614400000,1545],[1578700800000,1478],[1578787200000,1453],[1578873600000,1614],[1578960000000,1594],[1579046400000,1565],[1579132800000,1543],[1579219200000,1539],[1579305600000,1498],[1579392000000,1520],[1579478400000,1744],[1579564800000,1792],[1579651200000,1805],[1579737600000,1798],[1579824000000,1760],[1579910400000,1593],[1579996800000,1469],[1580083200000,1616],[1580169600000,1637],[1580256000000,1619],[1580342400000,1594],[1580428800000,1462],[1580515200000,1314],[1580601600000,1247],[1580688000000,1385],[1580774400000,1511],[1580860800000,1588],[1580947200000,1636],[1581033600000,1628],[1581120000000,1430],[1581206400000,1352],[1581292800000,1470],[1581379200000,1534],[1581465600000,1572],[1581552000000,1597],[1581638400000,1512],[1581724800000,1361],[1581811200000,1258],[1581897600000,1448],[1581984000000,1523],[1582070400000,1547],[1582156800000,1521],[1582243200000,1535],[1582329600000,1387],[1582416000000,1276],[1582502400000,1403],[1582588800000,1464],[1582675200000,1591],[1582761600000,1631],[1582848000000,1601],[1582934400000,1400]]},{"name":"Forecast D-1","type":"line","data":[[1577836800000,1481],[1577923200000,1577],[1578009600000,1553],[1578096000000,1463],[1578182400000,1459],[1578268800000,1681],[1578355200000,1652],[1578441600000,1569],[1578528000000,1512],[1578614400000,1520],[1578700800000,1467],[1578787200000,1457],[1578873600000,1630],[1578960000000,1603],[1579046400000,1563],[1579132800000,1570],[1579219200000,1545],[1579305600000,1490],[1579392000000,1520],[1579478400000,1754],[1579564800000,1814],[1579651200000,1804],[1579737600000,1786],[1579824000000,1756],[1579910400000,1614],[1579996800000,1516],[1580083200000,1644],[1580169600000,1645],[1580256000000,1629],[1580342400000,1617],[1580428800000,1489],[1580515200000,1305],[1580601600000,1226],[1580688000000,1421],[1580774400000,1501],[1580860800000,1589],[1580947200000,1650],[1581033600000,1648],[1581120000000,1474],[1581206400000,1326],[1581292800000,1477],[1581379200000,1527],[1581465600000,1601],[1581552000000,1576],[1581638400000,1518],[1581724800000,1358],[1581811200000,1235],[1581897600000,1459],[1581984000000,1542],[1582070400000,1568],[1582156800000,1540],[1582243200000,1528],[1582329600000,1391],[1582416000000,1282],[1582502400000,1437],[1582588800000,1487],[1582675200000,1553],[1582761600000,1598],[1582848000000,1611],[1582934400000,1391]]}],"dataLabels":{"enabled":false},"stroke":{"curve":"smooth","width":2},"yaxis":{"decimalsInFloat":2,"labels":{"style":{"colors":"#848484"}}},"xaxis":{"type":"datetime","labels":{"style":{"colors":"#848484"}}},"annotations":{"position":"back","xaxis":[{"x":"new Date('2020-01-11').getTime()","borderColor":"#E41A1C","strokeDashArray":4},{"x":"new Date('2020-01-29').getTime()","borderColor":"#E41A1C","strokeDashArray":4}]}},"auto_update":{"series_animate":true,"update_options":false,"options_animate":true,"options_redrawPaths":true,"update_synced_charts":false},"sparkbox":false,"xaxis":{"min":"2020-01-01","max":"2020-02-29"},"type":"spline"},"evals":["ax_opts.annotations.xaxis.0.x","ax_opts.annotations.xaxis.1.x"],"jsHooks":[]}</script><span class="r-in"><span></span></span>
<span class="r-in"><span><span class="co"># Add labels on events</span></span></span>
<span class="r-in"><span><span class="fu"><a href="apex.html">apex</a></span><span class="op">(</span><span class="va">consumption</span>, <span class="fu"><a href="apexcharter-exports.html">aes</a></span><span class="op">(</span><span class="va">date</span>, <span class="va">value</span>, group <span class="op">=</span> <span class="va">type</span><span class="op">)</span>, <span class="st">"spline"</span><span class="op">)</span> <span class="op"><a href="apexcharter-exports.html">%&gt;%</a></span> </span></span>
<span class="r-in"><span> <span class="fu">add_event</span><span class="op">(</span></span></span>
<span class="r-in"><span> when <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"2020-01-11"</span>, <span class="st">"2020-01-29"</span><span class="op">)</span>,</span></span>
<span class="r-in"><span> label <span class="op">=</span> <span class="fu"><a href="label.html">label</a></span><span class="op">(</span>text <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"Am"</span>, <span class="st">"Ar"</span><span class="op">)</span><span class="op">)</span></span></span>
<span class="r-in"><span> <span class="op">)</span></span></span>
<div id="htmlwidget-ec658d41f8c4f2d124e9" style="width:700px;height:432.632880098888px;" class="apexcharter html-widget"></div>
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<span class="r-in"><span><span class="co"># can be combined with shade</span></span></span>
<span class="r-in"><span><span class="fu"><a href="apex.html">apex</a></span><span class="op">(</span><span class="va">consumption</span>, <span class="fu"><a href="apexcharter-exports.html">aes</a></span><span class="op">(</span><span class="va">date</span>, <span class="va">value</span>, group <span class="op">=</span> <span class="va">type</span><span class="op">)</span>, <span class="st">"spline"</span><span class="op">)</span> <span class="op"><a href="apexcharter-exports.html">%&gt;%</a></span> </span></span>
<span class="r-in"><span> <span class="fu"><a href="add-shade.html">add_shade</a></span><span class="op">(</span>from <span class="op">=</span> <span class="st">"2020-01-06"</span>, to <span class="op">=</span> <span class="st">"2020-01-20"</span><span class="op">)</span><span class="op"><a href="apexcharter-exports.html">%&gt;%</a></span> </span></span>
<span class="r-in"><span> <span class="fu">add_event</span><span class="op">(</span>when <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"2020-01-11"</span>, <span class="st">"2020-01-29"</span><span class="op">)</span><span class="op">)</span></span></span>
<div id="htmlwidget-6b83523733b890d61edc" style="width:700px;height:432.632880098888px;" class="apexcharter html-widget"></div>
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