Hi,<br><br>I'm trying to find vertical derivative of geopotential (geopt). I tried d cdiff(geopt,z), i find the error :<br><span class="gI"></span>Error from CDIFF: Specified dimension non varying<br>Operation Error: Error from cdiff function<br>
Error ocurred at column 1<br>DISPLAY error: Invalid expression<br> Expression = cdiff(u,z)<br><br>Any help would be great!<br><br>Thank you,<br>-------<br><font style="font-family:times new roman,serif" size="2"><i><span style="color:rgb(153,0,0)">Aishwarya,</span><br style="color:rgb(153,0,0)">
<span style="color:rgb(153,0,0)">Graduate Research Assistant,</span><br style="color:rgb(153,0,0)"><span style="color:rgb(153,0,0)">Atmospheric Sciences,</span><br style="color:rgb(153,0,0)"><span style="color:rgb(153,0,0)">University of Arizona,Tucson.</span></i></font><br>
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