Dear all,
I am still trying to fit a model for habituation with lme (Dogs are trotting on a treadmill once a week during 4 consecutive weeks).
I have maybe found a good one.
In order to validate it, I would like to split my data.
I have 28 dogs, I am thinking to build the model with 20 and use the remaining 8 to validate it.
Is it a good method to validate the model? How can I do this?
I would like to use the data from the first 2 weeks as input and see how good the model is to predict the data from the last 2 weeks.
I tried to use predict but this function does not take into account the data from the first 2 weeks. I can only get the results for the population.
I would appreciate any suggestions for this
Thank for your help
Laurent
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