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web-apps/apps/spreadsheeteditor/main/resources/help/en/Functions/logest.htm

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2021-01-14 11:37:06 +00:00
<!DOCTYPE html>
<html>
<head>
<title>LOGEST Function</title>
<meta charset="utf-8" />
<meta name="description" content="" />
<link type="text/css" rel="stylesheet" href="../editor.css" />
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<link type = "text/css" rel = "stylesheet" href = "../../images/sprite.css" />
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<script type="text/javascript" src="../callback.js"></script>
<script type="text/javascript" src="../search/js/page-search.js"></script>
</head>
<body>
<div class="mainpart">
<div class="search-field">
<input id="search" class="searchBar" placeholder="Search" type="text" onkeypress="doSearch(event)">
</div>
<h1>LOGEST Function</h1>
<p>The <b>LOGEST</b> function is one of the statistical functions. It is used to calculate an exponential curve that fits the data and returns an array of values that describes the curve.</p>
<p>The <b>LOGEST</b> function syntax is:</p>
<p style="text-indent: 150px;"><b><em>LOGEST(known_y’s, [known_x’s], [const], [stats])</em></b></p>
<p>where</p>
<p><b><em>known_y’s</em></b> is the set of y-values you already know in the <em>y = b*m^x</em> equation.</p>
<p><b><em>known_x’s</em></b> is the optional set of x-values you might know in the <em>y = b*m^x</em> equation.</p>
<p><b><em>const</em></b> is an optional argument. It is a TRUE or FALSE value where TRUE or lack of the argument forces <em>b</em> to be calculated normally and FALSE sets <em>b</em> to 1 in the <em>y = b*m^x</em> equation and m-values correspond with the <em>y = m^x</em> equation.</p>
<p><b><em>stats</em></b> is an optional argument. It is a TRUE or FALSE value that sets whether additional regression statistics should be returned.</p>
<p>To apply the <b>LOGEST</b> function,</p>
<ol>
<li>select the cell where you wish to display the result,</li>
<li>
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click the <b>Insert function</b> <div class = "icon icon-insertfunction"></div> icon situated at the top toolbar,
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<br />or right-click within a selected cell and select the <b>Insert Function</b> option from the menu,
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<br />or click the <div class = "icon icon-function"></div> icon situated at the formula bar,
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</li>
<li>select the <b>Statistical</b> function group from the list,</li>
<li>click the <b>LOGEST</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 style="text-indent: 150px;"><img alt="LOGEST Function" src="../images/logest.png" /></p>
</div>
</body>
</html>
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