Streamlining spectral data processing and modeling for spectroscopy applications
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<h1>Wrapper function around <code>merge_dts()</code> for list of tibbles to
aggregate data for plotting.</h1>
<small class="dont-index">Source: <a href="https://github.com/philipp-baumann/simplerspec/blob/HEAD/R/plot-spc-extended.R" class="external-link"><code>R/plot-spc-extended.R</code></a></small>
<div class="hidden name"><code>merge_dts_l.Rd</code></div>
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<div class="ref-description">
<p>Instead of a single spectral tibble (data frame) multiple
spectral tibbles can be merged into a long-form data.table for plotting
spectra and related data. For details, see
<code><a href="merge_dts.html">merge_dts</a></code>.</p>
</div>
<div id="ref-usage">
<div class="sourceCode"><pre class="sourceCode r"><code><span><span class="fu">merge_dts_l</span><span class="op">(</span></span>
<span> <span class="va">spc_tbl_l</span>,</span>
<span> lcols_spc <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">"spc"</span>, <span class="st">"spc_pre"</span><span class="op">)</span>,</span>
<span> lcol_measure <span class="op">=</span> <span class="cn">NULL</span>,</span>
<span> spc_id <span class="op">=</span> <span class="st">"unique_id"</span>,</span>
<span> group_id <span class="op">=</span> <span class="st">"sample_id"</span></span>
<span><span class="op">)</span></span></code></pre></div>
</div>
<div id="arguments">
<h2>Arguments</h2>
<dl><dt>spc_tbl_l</dt>
<dd><p>List of spectral tibbles (data frames).</p></dd>
<dt>lcols_spc</dt>
<dd><p>Character vector of spectral list-columns to be extracted.
Default is <code>c("spc", "spc_pre")</code> (raw and preprocessed spectra).</p></dd>
<dt>lcol_measure</dt>
<dd><p>Character vector of length 1 denoting the column name
of the measure columns. This argument is optional. Default is <code>NULL</code>,
which does not extract an additional measure column.</p></dd>
<dt>spc_id</dt>
<dd><p>Character vector of column that contains a unique spectral
identifier for all spectra. Default is <code>"unique_id"</code>.</p></dd>
<dt>group_id</dt>
<dd><p>Character vector of columns that is used assigning spectra
into groups. Default is <code>"sample_id"</code>. The <code>group_id</code> can be
used for later plotting and thereby visually separating spectral groups into
using different colors or panels.</p></dd>
</dl></div>
<div id="value">
<h2>Value</h2>
<p>A single data.table containing long form aggregated data of
spectra, x-axis values, metadata and an additionally measured variable.
An additional column called <code>group_id_tbl</code> is appended. It denotes
the name of the spectral tibble supplied with the list <code>spc_tbl_l</code>.</p>
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