<html><head></head><body><div class="yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div dir="ltr" data-setdir="false">I am using grads for displaying one dimensional model data,say it rainfall from GFS, for fixed Lat Long but varying time dimension. the display command looks like <span>'d (pratesfc)*60*60*3' this will display very smart line graph that represent the forecast ed rainfall as a function of time. by my intention is to display the cumulative line graph.how can i do that.</span><br></div><div dir="ltr" data-setdir="false">.<br></div></div></body></html>