sorry I forgot to say clear. my out of sample is part of whole sample. for
example: the whole sample is knew as A +B, I use A as In sample and B as
out of sample
thanks for your reply
yadong
On Sun, Jul 22, 2012 at 10:08 PM, Johannes Lips <johannes.lips(a)gmail.com>wrote:
 yadong li wrote:
 > is there any way to obtain out of sample R square using Gretl ?
 > I tried many time but couldn't figure it out.
 I would say, by definition an out-of sample R-square couldn't exist.
 
http://encyclopedia.thefreedictionary.com/R+Square
 The reason for that is, that the R-square is calculated using the
 difference between the model and the actuals. So it's kind of hard to
 get it if there are no actuals ;-)
 Johannes
 >
 > appreciate for help
 >
 >
 > best,
 >
 >
 > yadong
 >
 >
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