web-apps/apps/spreadsheeteditor/main/resources/help/en/Functions/unique.htm
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<title>UNIQUE Function</title>
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<h1>UNIQUE Function</h1>
<p>The <b>UNIQUE</b> function is one of the reference functions. It is used to return a list of unique values from the specified range.</p>
<p>The <b>UNIQUE</b> function syntax is:</p>
<p style="text-indent: 150px;"><b><em>UNIQUE(array,[by_col],[exactly_once])</em></b></p>
<p>where</p>
<p><b><em>array</em></b> is the range from which to extract unique values.</p>
<p><b><em>by_col</em></b> is the optional TRUE or FALSE value indicating the method of comparison: TRUE for columns and FALSE for rows.</p>
<p><b><em>exactly_once</em></b> is the optional TRUE or FALSE value indicating the returning method: TRUE for values occurring once and FALSE for all unique values.</p>
<p>To apply the <b>UNIQUE</b> function,</p>
<ol>
<li>select the cell where you wish to display the result,</li>
<li>
click the <b>Insert function</b> <img alt="Insert function icon" src="../images/insertfunction.png" /> icon situated at the top toolbar,
<br />or right-click within a selected cell and select the <b>Insert Function</b> option from the menu,
<br />or click the <img alt="Function icon" src="../images/function.png" /> icon situated at the formula bar,
</li>
<li>select the <b>Look up and reference</b> function group from the list,</li>
<li>click the <b>UNIQUE</b> function,</li>
<li>enter the required argument,</li>
<li>press the <b>Enter</b> button.</li>
</ol>
<p>The result will be displayed in the selected cell.</p>
<p class="note">To return a range of values, select a required range of cells, enter the formula, and press the <b>Ctrl+Shift+Enter</b> key combination.</p>
<p style="text-indent: 150px;"><img alt="UNIQUE Function" src="../images/unique.png" /></p>
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