Use the average function for June, July and August, Then average the 3. If you meant to represent JJA as one point.<br><br>t6=ave(var1,time=jun1951,time=jun2050,12)<br>or<br>t6=ave(var1,t=6,t=460,12)<br>the same with t7 and t8<br>
t678=(t6+t7+t8)/3<br>there you have t678.<br><br><div class="gmail_quote">On Fri, Mar 22, 2013 at 10:13 AM, leonardo <span dir="ltr"><<a href="mailto:leoclarke@yahoo.com" target="_blank">leoclarke@yahoo.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><table border="0" cellpadding="0" cellspacing="0"><tbody><tr><td style="font:inherit" valign="top"><div>Dear GRADS Users<br>
<br>I have an area average monthly time series and would like to create a seasonal time series. Example create a time series of JJA averages for all the years.<br><br>Is there a simple way that this can be done?<br><br>Regards<br>
LC</div></td></tr></tbody></table><br>_______________________________________________<br>
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