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<!--Copyright (C) 1988-2005 by the Institute of Global Environment and Society (IGES). See file COPYRIGHT for more information.-->

<html>
<head>
<title>GrADS Function: max</title>
</head>
<body bgcolor="e0f0ff" text="#000000">

<h2><b>max()</b></h2>
<p>
<code>max(<i>expr, dim1, dim2 <,tinc></i>)</code>
<p>
Returns the maximum of <code><i>expr</i></code> over the specified 
dimension range. If the specified dimension is time, an
optional time increment <code><i>tincr</i></code> may be specified.

<p>
<ul>
<code><i>expr</i>&nbsp;&nbsp;&nbsp;&nbsp;</code>- any valid GrADS expression <br>
<code><i>dim1</i>&nbsp;&nbsp;&nbsp;&nbsp;</code>- the starting dimension expression<br>
<code><i>dim2</i>&nbsp;&nbsp;&nbsp;&nbsp;</code>- the ending dimension expression<br>
<code><i>tinc</i>&nbsp;&nbsp;&nbsp;&nbsp;</code>- optional time increment<br>
</ul>

<p>
<code><i>dim1</i></code> and <code><i>dim2</i></code> are standard
GrADS dimension expressions whose dimensions must match.

<p>
<h3>Usage Notes</h3>
<p>
<ol>
<li>
Related functions are: 
<code><a href="gradfuncmaxloc.html">maxloc</a></code>, 
<code><a href="gradfuncmin.html">min</a></code>, and
<code><a href="gradfuncminloc.html">minloc</a></code>. <br>
These functions will only work with GrADS version 1.8 or later.
</ol>

<p>
<h3>Examples</h3>
<ol>
<li>To calculate the maximum value of the <code>precip</code> variable over the lon-lat domain, use nested <code>max</code> functions: 
<p>
<code>
d max(max(precip,lon=0,lon=360),lat=-90,lat=90)
</code>
<p>

</body>
</html>