<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 14 (filtered medium)"><!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hi, can anyone suggest how to sum the values in a grid. I have to first in t-direction and then in x and y direction.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>define a=sum(dstflxt*area, t=1, t=365) (summing in t-direction, this works fine)<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>define b= sum(a,x=1,x=288,y=1,y=192) (summing in x and y direction, this doesn’t work)<o:p></o:p></p><p class=MsoNormal>d b<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>It displays error in sum options.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Please help.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Sincerely,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='color:#E36C0A'>Sagar Prasad Parajuli<o:p></o:p></span></p><p class=MsoNormal><span style='color:#E36C0A'>Graduate Student/Research Assistant<o:p></o:p></span></p><p class=MsoNormal><span style='color:#E36C0A'>University of Texas at Austin<o:p></o:p></span></p><p class=MsoNormal><span style='color:#E36C0A'>Jackson School of Geosciences<o:p></o:p></span></p><p class=MsoNormal><span style='color:#E36C0A'>1 University Station C1100, JGB 5.322<br>Austin, TX 78712<o:p></o:p></span></p><p class=MsoNormal><span style='color:#E36C0A'>Contact: <a href="mailto:psagar@utexas.edu"><span style='color:#E36C0A'>psagar@utexas.edu</span></a><o:p></o:p></span></p><p class=MsoNormal><span style='color:#E36C0A'>Cell: 512 965 4093<o:p></o:p></span></p><p class=MsoNormal><img border=0 width=80 height=40 id="Picture_x0020_1" src="cid:image001.jpg@01CDABA8.12178880" alt=texas-longhorn-logo><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>