I have ECMWF data running from 1980-2006, i want to do a timeseries for an annual mean, i.e plot all averages from Jan to Dec for the whole period. Any clue how to do this with GRADS.... -------------- next part -------------- An HTML attachment was scrubbed... URL: http://gradsusr.org/pipermail/gradsusr/attachments/20120130/483c745b/attachment.html