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palit
2012 Apr 26
1
Using the R predict function to forecast a model fit with auto.arima function
...etric measure and has been formatted as numeric without any commas or
decimals.
I imported the dataset as pauldataset and made use of the auto.arima
function which is great when you want R to suggest an appropriate arima
model to fit to your data.
I successfully got the arima fit by coding:
> paulfit<-auto.arima(pauldataset$pcumsdry)
> paulfit
which produced the following results:
Series: pauldataset$pcumsdry
ARIMA(2,1,1) with drift
Coefficients:
ar1 ar2 ma1 drift
0.2684 0.109 -0.8906 -15265.776
s.e. 0.1145 0.102 0.0798 8047.169
sigma^2...