Sun, 7 Nov 1999 17:56:47 +0100 (MET)
Full_Name: Ahmad Abu Hammour
OS: windows 95
Submission from: (NULL) (22.214.171.124)
Although I know that "ts package" is preliminary, I wanted to compare the
results from R and SPSS. I ran ARIMA(2,1,2) in both softwares. I got NaN in
standard errors of coefficients from R and real figures from SPSS. I changed
"delta" in R to match that used by SPSS, I received results with no NaNs but
different from those from SPSS specially in MA coefficients. They came out
negative numbers while positive from SPSS.
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