[R] ARMA

From: Bojana Milosevic <boki2b_at_yahoo.com>
Date: Sun, 08 May 2011 13:09:09 -0700 (PDT)


Hello,Could somebody tell me what is the difference between  theese 3 calls of functionsarma(x,order=c(1,0)), arima(x,order=c(1,0,0)) ar(x,order=1)?I expected same residuals of theese three models,but unexpectably for the first two R requiredinitial value of something (what?)...Thanks in advance! 

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