Hello all,

I use the arima to get a model, i.e.

fit = arima(x,order=c(1,0,0))

and I know I can get the following from fit via

est.coef               = coef(fig)
est.aic                   =  fit$aic
std.err                  = sqrt(diag(vcov(fit)))
t.stat                     = est.coef/std.err

How can I get the following stat from arima?

Pr(>|t|)
r2
adjust_r2
rmse

Thanks,

Rebecca

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