# C1.CalcEngine.ExpressionEngine.AggregateFunctions

## Content

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  <h1 id="C1_CalcEngine_ExpressionEngine_AggregateFunctions" data-uid="C1.CalcEngine.ExpressionEngine.AggregateFunctions" class="text-break">AggregateFunctions Class
</h1>
  <div class="markdown level0 summary"><p>Represents aggregate functions.</p>
</div>
  <div class="markdown level0 conceptual"></div>
  <div class="inheritance">
    <h5>Inheritance</h5>
    <div class="level0"><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object">object</a></div>
    <div class="level1"><span class="xref">AggregateFunctions</span></div>
  </div>
  <h6><strong>Namespace</strong>: <a class="xref" href="C1.CalcEngine.ExpressionEngine.html">C1.CalcEngine.ExpressionEngine</a></h6>
  <h6><strong>Assembly</strong>: C1.CalcEngine.dll</h6>
  <h5 id="C1_CalcEngine_ExpressionEngine_AggregateFunctions_syntax">Syntax</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public static class AggregateFunctions</code></pre>
  </div>
  <div class="codewrapper">
    <pre><code class="lang-vbnet hljs">Public Module AggregateFunctions</code></pre>
  </div>
  <h3 id="methods">Methods
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  <table class="table table-bordered table-condensed">
    <thead>
      <tr>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td id="C1_CalcEngine_ExpressionEngine_AggregateFunctions_Average_System_Collections_Generic_List_C1_CalcEngine_ExpressionEngine_IExpression__" data-uid="C1.CalcEngine.ExpressionEngine.AggregateFunctions.Average(System.Collections.Generic.List{C1.CalcEngine.ExpressionEngine.IExpression})">
          <a class="xref" href="C1.CalcEngine.ExpressionEngine.AggregateFunctions.Average.html#C1_CalcEngine_ExpressionEngine_AggregateFunctions_Average_System_Collections_Generic_List_C1_CalcEngine_ExpressionEngine_IExpression__">Average(List&lt;IExpression&gt;)</a>
        </td>
        <td class="markdown level1 summary"><p>Computes the average of a sequence of values.</p>
</td>
      </tr>
      <tr>
        <td id="C1_CalcEngine_ExpressionEngine_AggregateFunctions_Count_System_Collections_Generic_List_C1_CalcEngine_ExpressionEngine_IExpression__" data-uid="C1.CalcEngine.ExpressionEngine.AggregateFunctions.Count(System.Collections.Generic.List{C1.CalcEngine.ExpressionEngine.IExpression})">
          <a class="xref" href="C1.CalcEngine.ExpressionEngine.AggregateFunctions.Count.html#C1_CalcEngine_ExpressionEngine_AggregateFunctions_Count_System_Collections_Generic_List_C1_CalcEngine_ExpressionEngine_IExpression__">Count(List&lt;IExpression&gt;)</a>
        </td>
        <td class="markdown level1 summary"><p>Returns the number of elements in a sequence.</p>
</td>
      </tr>
      <tr>
        <td id="C1_CalcEngine_ExpressionEngine_AggregateFunctions_First_System_Collections_Generic_List_C1_CalcEngine_ExpressionEngine_IExpression__" data-uid="C1.CalcEngine.ExpressionEngine.AggregateFunctions.First(System.Collections.Generic.List{C1.CalcEngine.ExpressionEngine.IExpression})">
          <a class="xref" href="C1.CalcEngine.ExpressionEngine.AggregateFunctions.First.html#C1_CalcEngine_ExpressionEngine_AggregateFunctions_First_System_Collections_Generic_List_C1_CalcEngine_ExpressionEngine_IExpression__">First(List&lt;IExpression&gt;)</a>
        </td>
        <td class="markdown level1 summary"><p>Returns the first element of a sequence.</p>
</td>
      </tr>
      <tr>
        <td id="C1_CalcEngine_ExpressionEngine_AggregateFunctions_Last_System_Collections_Generic_List_C1_CalcEngine_ExpressionEngine_IExpression__" data-uid="C1.CalcEngine.ExpressionEngine.AggregateFunctions.Last(System.Collections.Generic.List{C1.CalcEngine.ExpressionEngine.IExpression})">
          <a class="xref" href="C1.CalcEngine.ExpressionEngine.AggregateFunctions.Last.html#C1_CalcEngine_ExpressionEngine_AggregateFunctions_Last_System_Collections_Generic_List_C1_CalcEngine_ExpressionEngine_IExpression__">Last(List&lt;IExpression&gt;)</a>
        </td>
        <td class="markdown level1 summary"><p>Returns the last element of a sequence.</p>
</td>
      </tr>
      <tr>
        <td id="C1_CalcEngine_ExpressionEngine_AggregateFunctions_Max_System_Collections_Generic_List_C1_CalcEngine_ExpressionEngine_IExpression__" data-uid="C1.CalcEngine.ExpressionEngine.AggregateFunctions.Max(System.Collections.Generic.List{C1.CalcEngine.ExpressionEngine.IExpression})">
          <a class="xref" href="C1.CalcEngine.ExpressionEngine.AggregateFunctions.Max.html#C1_CalcEngine_ExpressionEngine_AggregateFunctions_Max_System_Collections_Generic_List_C1_CalcEngine_ExpressionEngine_IExpression__">Max(List&lt;IExpression&gt;)</a>
        </td>
        <td class="markdown level1 summary"><p>Returns the maximum value in a sequence of nullable System.Double values.</p>
</td>
      </tr>
      <tr>
        <td id="C1_CalcEngine_ExpressionEngine_AggregateFunctions_Min_System_Collections_Generic_List_C1_CalcEngine_ExpressionEngine_IExpression__" data-uid="C1.CalcEngine.ExpressionEngine.AggregateFunctions.Min(System.Collections.Generic.List{C1.CalcEngine.ExpressionEngine.IExpression})">
          <a class="xref" href="C1.CalcEngine.ExpressionEngine.AggregateFunctions.Min.html#C1_CalcEngine_ExpressionEngine_AggregateFunctions_Min_System_Collections_Generic_List_C1_CalcEngine_ExpressionEngine_IExpression__">Min(List&lt;IExpression&gt;)</a>
        </td>
        <td class="markdown level1 summary"><p>Returns the minimum value in a sequence of System.Double values.</p>
</td>
      </tr>
      <tr>
        <td id="C1_CalcEngine_ExpressionEngine_AggregateFunctions_StDev_System_Collections_Generic_List_C1_CalcEngine_ExpressionEngine_IExpression__" data-uid="C1.CalcEngine.ExpressionEngine.AggregateFunctions.StDev(System.Collections.Generic.List{C1.CalcEngine.ExpressionEngine.IExpression})">
          <a class="xref" href="C1.CalcEngine.ExpressionEngine.AggregateFunctions.StDev.html#C1_CalcEngine_ExpressionEngine_AggregateFunctions_StDev_System_Collections_Generic_List_C1_CalcEngine_ExpressionEngine_IExpression__">StDev(List&lt;IExpression&gt;)</a>
        </td>
        <td class="markdown level1 summary"><p>Computes the standard deviation of a sequence of values.</p>
</td>
      </tr>
      <tr>
        <td id="C1_CalcEngine_ExpressionEngine_AggregateFunctions_Sum_System_Collections_Generic_List_C1_CalcEngine_ExpressionEngine_IExpression__" data-uid="C1.CalcEngine.ExpressionEngine.AggregateFunctions.Sum(System.Collections.Generic.List{C1.CalcEngine.ExpressionEngine.IExpression})">
          <a class="xref" href="C1.CalcEngine.ExpressionEngine.AggregateFunctions.Sum.html#C1_CalcEngine_ExpressionEngine_AggregateFunctions_Sum_System_Collections_Generic_List_C1_CalcEngine_ExpressionEngine_IExpression__">Sum(List&lt;IExpression&gt;)</a>
        </td>
        <td class="markdown level1 summary"><p>Computes the sum of a sequence of values.</p>
</td>
      </tr>
      <tr>
        <td id="C1_CalcEngine_ExpressionEngine_AggregateFunctions_Var_System_Collections_Generic_List_C1_CalcEngine_ExpressionEngine_IExpression__" data-uid="C1.CalcEngine.ExpressionEngine.AggregateFunctions.Var(System.Collections.Generic.List{C1.CalcEngine.ExpressionEngine.IExpression})">
          <a class="xref" href="C1.CalcEngine.ExpressionEngine.AggregateFunctions.Var.html#C1_CalcEngine_ExpressionEngine_AggregateFunctions_Var_System_Collections_Generic_List_C1_CalcEngine_ExpressionEngine_IExpression__">Var(List&lt;IExpression&gt;)</a>
        </td>
        <td class="markdown level1 summary"><p>Computes the variance of a sequence of values.</p>
</td>
      </tr>
    </tbody>
  </table>

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