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2011 Jun 16
1
prediction intervals
...combine the results across all cities and have overall prediction intervals. Because I assuming that they're independent can I just add together the degrees of freedom from each model (i.e. total degrees of freedom=df1+df2+...) and the variance-covariance matrices (i.e. V=V1+V2+...) in order to calcalate the overall prediction intervals? Any help would be most appreciated. Regards, Dave [[alternative HTML version deleted]]