plot.spec
Plotting Spectral Densities
Plotting method for objects of class "spec"
. For multivariate
time series it plots the marginal spectra of the series or pairs plots
of the coherency and phase of the cross-spectra.
Usage
"plot"(x, add = FALSE, ci = 0.95, log = c("yes", "dB", "no"), xlab = "frequency", ylab = NULL, type = "l", ci.col = "blue", ci.lty = 3, main = NULL, sub = NULL, plot.type = c("marginal", "coherency", "phase"), ...)
plot.spec.phase(x, ci = 0.95, xlab = "frequency", ylab = "phase", ylim = c(-pi, pi), type = "l", main = NULL, ci.col = "blue", ci.lty = 3, ...)
plot.spec.coherency(x, ci = 0.95, xlab = "frequency", ylab = "squared coherency", ylim = c(0, 1), type = "l", main = NULL, ci.col = "blue", ci.lty = 3, ...)
Arguments
- x
- an object of class
"spec"
. - add
- logical. If
TRUE
, add to already existing plot. Only valid forplot.type = "marginal"
. - ci
- coverage probability for confidence interval. Plotting of
the confidence bar/limits is omitted unless
ci
is strictly positive. - log
- If
"dB"
, plot on log10 (decibel) scale (as S-PLUS), otherwise use conventional log scale or linear scale. Logical values are also accepted. The default is"yes"
unlessoptions(ts.S.compat = TRUE)
has been set, when it is"dB"
. Only valid forplot.type = "marginal"
. - xlab
- the x label of the plot.
- ylab
- the y label of the plot. If missing a suitable label will be constructed.
- type
- the type of plot to be drawn, defaults to lines.
- ci.col
- colour for plotting confidence bar or confidence intervals for coherency and phase.
- ci.lty
- line type for confidence intervals for coherency and phase.
- main
- overall title for the plot. If missing, a suitable title is constructed.
- sub
- a sub title for the plot. Only used for
plot.type = "marginal"
. If missing, a description of the smoothing is used. - plot.type
- For multivariate time series, the type of plot required. Only the first character is needed.
- ylim, ...
- Graphical parameters.
See Also
Community examples
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