I am trying to work with proc mixed for the 1st time and wanted to get some expert help.   I have a simple test where I am evaluating 9 growth regulator treatments on plant growth parameters (height, width, and yield). I have this test in 8 locations across the Southern United States (GA, AL, TX, SC, NC, MS, VA, etc).  How do I set up the SAS code to best analyse the treatment effects across each trial location and across all locations.   Thanks,   Scott ... View more