display function

Graphs for ARMA models

display shows graphs characterizing one or a list of ARMA models.

display(um, ...)

## S3 method for class 'um'
display(
  um,
  lag.max = 25,
  n.freq = 501,
  log.spec = FALSE,
  graphs = c("acf", "pacf", "spec"),
  byrow = FALSE,
  eq = TRUE,
  ...
)

## Default S3 method:
display(um, ...)

Arguments

• um: an object of class um or a list of these objects.
• ...: additional arguments.
• lag.max: number of lags for ACF/PACF.
• n.freq: number of frequencies for the spectrum.
• log.spec: logical. If TRUE log spectrum is computed.
• graphs: vector of graphs.
• byrow: orientation of the graphs.
• eq: logical. If TRUE the model equation is used as title.

Examples

um1 <- um(ar = "(1 - 0.8B)(1 - 0.8B^12)")
um2 <- um(ma = "(1 - 0.8B)(1 - 0.8B^12)")
display(list(um1, um2))