<html><head></head><body><div style="color:#000; background-color:#fff; font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px"><div id="yui_3_16_0_ym19_1_1505394389574_3937">Hello all:</div><div id="yui_3_16_0_ym19_1_1505394389574_3936"><br></div><div id="yui_3_16_0_ym19_1_1505394389574_3908">I have t dimension from Jan (1) to Dec (12).</div><div id="yui_3_16_0_ym19_1_1505394389574_3935"> </div><font id="yui_3_16_0_ym19_1_1505394389574_3473" face="Times New Roman" size="3"><font id="yui_3_16_0_ym19_1_1505394389574_3474" face="Times New Roman" size="3"><div id="yui_3_16_0_ym19_1_1505394389574_3868" dir="ltr"><strong id="yui_3_16_0_ym19_1_1505394389574_3909">How can I compute average for </strong><strong id="yui_3_16_0_ym19_1_1505394389574_3910">winter season (Dec, Jan, Feb) using the function: ave(z,t=t1,t=t2)?</strong></div><div id="yui_3_16_0_ym19_1_1505394389574_3938" dir="ltr"><strong><br></strong></div><div id="yui_3_16_0_ym19_1_1505394389574_3934" dir="ltr"><strong>Thanks in advance.</strong></div><div dir="ltr"><strong><br></strong></div><div id="yui_3_16_0_ym19_1_1505394389574_3933" dir="ltr"><strong>FL</strong></div></font></font></div></body></html>