why should the trial be treated as a fixed factor how to make lme models how to do a trial with two sites what is lme for trial what is the difference between year and trial in a model? what is the difference between a year and a trial is year a fixed or random factor in lme when should two years be treated as a fixed factor in the experiment? is a trial a random factor how to do random factor models lme analysis of two sites two years how many sites in a trial is a year a fixed factor why random factor should be treated how to model random factor how can i rework an lme trial is year a random factor is the year of a trial in a simplification model can you use the year model in a random factor what is the difference between a trial and block in a lme model?