| plot.spec {stats} | R Documentation |
Plotting Spectral Densities
Description
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
## S3 method for class 'spec':
plot(x, add = FALSE, ci = 0.95, log = c("yes", "dB", "no"),
xlab = "frequency", ylab, type = "l", ci.col = "blue",
main = NULL, sub = NULL,
plot.type = c("marginal", "coherency", "phase"),
ci.lty = 3, ...)
Arguments
x |
an object of class "spec". |
add |
logical. If TRUE, add to already existing plot. |
ci |
Coverage probability for confidence interval. Plotting of
the confidence bar 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" unless
options(ts.S.compat = TRUE) has been set, when it is
"dB". |
xlab |
the x label of the plot. |
ylab |
the y label of the plot. |
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. |
main |
overall title for the plot. |
sub |
a sub title for the plot. |
plot.type |
For multivariate time series, the type of plot
required. Only the first character is needed. |
ci.lty |
line type for confidence intervals for coherency and
phase. |
... |
Further graphical parameters. |
See Also
spectrum