combplot {ASSA} | R Documentation |
Produces a comb-plot for visualizing what principal components are used for producing the (multivariate) singular spectrum business cycle indicator.
combplot(fit)
fit |
a |
combplot
yields a comb-plot indentifying the indices
of the components selected according to the Fisher g
statistic,
along with the corresponding principal components; see de Carvalho and
Rua (2017, p. 190) for a definition.
Miguel de Carvalho.
de Carvalho, M. and Rua, A. (2017). Real-time nowcasting the US output gap: Singular spectrum analysis at work. International Journal of Forecasting, 33, 185–198.
bssa
.
## Tracking the US Business Cycle (de Carvalho and Rua, 2017; Fig. 5)
data(GDPIP)
fit <- bssa(log(GDPIP[, 1]))
combplot(fit)