Dear r users,
   
  Few days ago I posted the same topic but unable to receive any suggestion. So I am asking this same question. 
   
  I was trying to fit a garch(1,1) model to my dataset. But while executing I got a warning message "NaNs produced in: sqrt(pred$e)". And got the estimated sd's along with five "NA", but as per my best knowledge I should get only one "NA" i.e. corresponding to the first observation only. If anyone tell me why I got this message it will be a great advantage for me.
   
  With regards,



thanks in advance
				
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