R help - Feb 2009 - I can't apply the summary function when I use de armaFit (fArma)...

Hi,

I can't apply the summary function when I use de armaFit (fArma).

Can you help?

 

fit<-armaFit(~arma(1,0),data=age55)

fit

Title:

 ARIMA Modelling 

Call:

 armaFit(formula = ~arma(1, 0), data = age55)

Model:

 ARIMA(1,0,0) with method: CSS-ML

Coefficient(s):

      ar1  intercept  

-0.564184   0.001190  

Description:

 Mon Feb 16 15:00:54 2009 by user: f003553 

 

 summary(fit)

Error in var.default(ans$residuals) : 

  invalid 'use' (computational method)

 

Thanks in advance for your Kind collaboration.

Ana


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