R help - May 2013 - Question about Rpart function

Hello,

When considering linear function where dependent variable is a function of
lags of dependent variables ( co-variates are kind of auto
regressive).Question is .....Can i take entire data set for rpart . Then
split data into training and testing and validate the model for testing
data.In testing data previously predicted value will be the lag of
dependent variable for next prediction.


Thanks,
Puja

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