作者: mono 时间: 2014-9-30 08:53
T7, T30 and T90 should be hightly correlated. Use only one of them or summeriasie them to one variable. All you may think the other way: price is your predictor, number of sold products as the outcome, then use mixed model (repeated measurements)作者: mono 时间: 2014-10-1 08:01
where is my response?