can we get the average over lat and lon by putting co-ordinate index like rfavglatlon = dim_avg_n(rf(152:273,72:118,22:54), (/1,2/)) thank you -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mailman.ucar.edu/pipermail/ncl-talk/attachments/20190226/56cfeb91/attachment.html>