Hi, I want to generate a composite of 10 years precip data.Is composite an average of the data or something else?How can I make this in grads or cdo.Please guide me.Thanks RegardsAmina -------------- next part -------------- An HTML attachment was scrubbed... URL: http://gradsusr.org/pipermail/gradsusr/attachments/20151020/cb1a40d6/attachment.html