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<h1>Fields not selected<a class="headerlink" href="#fields-not-selected" title="Permalink to this headline">¶</a></h1>
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<p>Check the field-separators of the data, e.g. with the command-line <code class="docutils literal notranslate"><span class="pre">head</span></code> program. Example: for CSV, Miller’s default record separator is comma; if your data is tab-delimited, e.g. <code class="docutils literal notranslate"><span class="pre">aTABbTABc</span></code>, then Miller won’t find three fields named <code class="docutils literal notranslate"><span class="pre">a</span></code>, <code class="docutils literal notranslate"><span class="pre">b</span></code>, and <code class="docutils literal notranslate"><span class="pre">c</span></code> but rather just one named <code class="docutils literal notranslate"><span class="pre">aTABbTABc</span></code>. Solution in this case: <code class="docutils literal notranslate"><span class="pre">mlr</span> <span class="pre">--fs</span> <span class="pre">tab</span> <span class="pre">{remaining</span> <span class="pre">arguments</span> <span class="pre">...}</span></code>.</p>
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<p>Also try <code class="docutils literal notranslate"><span class="pre">od</span> <span class="pre">-xcv</span></code> and/or <code class="docutils literal notranslate"><span class="pre">cat</span> <span class="pre">-e</span></code> on your file to check for non-printable characters.</p>
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