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Old 11-07-2015, 08:51 AM   #4
Devon Ryan
Location: Freiburg, Germany

Join Date: Jul 2011
Posts: 3,480

The odds are quite good that you want the interaction. Without it you're just looking for consistent changes over time. So the full model would be "~replica*hours" and the reduced model just "~replica".

The order of things in the formula only matters for a few plotting functions (they usually default to coloring according to the last model component), the statistics will be the same regardless.
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