fitted method for objects of class nlVar, i.e. VAR and VECM models.
Returns the fitted values of the model, either as computed in the model, or back to the original series level.
## S3 method for class 'nlVar'
fitted(object, level = c("model", "original"), ...)In case of a VAR in differences, in ADF specification, or a VECM, the fitted
values are actually in differences. With the option level="original",
the function returns the series in the original level.
For VAR in levels, the two arguments are evidently the same and hence it is not taken into account, returning a warning.
A matrix.
Matthieu Stigler
## estimate models data(barry) ve <- VECM(barry, lag=2) va <- lineVar(barry, lag=1) va_diff <- lineVar(barry, lag=1, I="diff") va_ADF <- lineVar(barry, lag=1, I="ADF") ## get fitted values: tail(fitted(ve)) tail(fitted(ve, level="original")) tail(fitted(va)) tail(fitted(object=va, level="original")) tail(fitted(va_diff)) tail(fitted(object=va_diff, level="original")) tail(fitted(va_ADF)) tail(fitted(object=va_ADF, level="original"))
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