Dear Majid,<br><br>I don't know what is the format of your data and what you mean by <span style="color:rgb(51,102,255)">"I want to plot a line graph showing a single averaged value against a year."</span> but if it is in netcdf format, try using CDO with the syntax "CDO info inputfile" or "CDO info inputfile > outputfile.txt" to obtain the dataset information, then you will have a txt file that you can manipulate, let's say with Excel...<br>
<br>Cheers,<br>Serge<br><br><div class="gmail_quote">On Wed, Feb 15, 2012 at 12:13 AM, Majid Nazeer <span dir="ltr"><<a href="mailto:majid_441@hotmail.com">majid_441@hotmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div><div dir="ltr">
Dear All,<div><br></div><div>I have mean monthly NCEP data set of air temperature from 1948 to 2012. I want to see the annual trend of air temperature for which I want to plot a line graph showing a single averaged value against a year. Can anyone help me that how can I do this.</div>
<div><br></div><div>I shall be very thankful. <br><b>_____________________________</b><br>Regards;<br>Majid Nazeer<br><br></div> </div></div>
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<br></blockquote></div><br><br clear="all"><br>-- <br>Serge<br>