| % File src/library/stats/man/plot.spec.Rd |
| % Part of the R package, https://www.R-project.org |
| % Copyright 1995-2007 R Core Team |
| % Distributed under GPL 2 or later |
| |
| \name{plot.spec} |
| \alias{plot.spec} |
| \alias{plot.spec.coherency} |
| \alias{plot.spec.phase} |
| \title{Plotting Spectral Densities} |
| \description{ |
| Plotting method for objects of class \code{"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{ |
| \method{plot}{spec}(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"), |
| \dots) |
| |
| 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, \dots) |
| |
| 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, \dots) |
| } |
| \arguments{ |
| \item{x}{an object of class \code{"spec"}.} |
| \item{add}{logical. If \code{TRUE}, add to already existing plot. |
| Only valid for \code{plot.type = "marginal"}. |
| } |
| \item{ci}{coverage probability for confidence interval. Plotting of |
| the confidence bar/limits is omitted unless \code{ci} is strictly |
| positive.} |
| \item{log}{If \code{"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 \code{"yes"} unless |
| \code{options(ts.S.compat = TRUE)} has been set, when it is |
| \code{"dB"}. Only valid for \code{plot.type = "marginal"}. |
| } |
| \item{xlab}{the x label of the plot.} |
| \item{ylab}{the y label of the plot. If missing a suitable label will |
| be constructed.} |
| \item{type}{the type of plot to be drawn, defaults to lines.} |
| \item{ci.col}{colour for plotting confidence bar or confidence |
| intervals for coherency and phase.} |
| \item{ci.lty}{line type for confidence intervals for coherency and |
| phase.} |
| \item{main}{overall title for the plot. If missing, a suitable title |
| is constructed.} |
| \item{sub}{a sub title for the plot. Only used for \code{plot.type = |
| "marginal"}. If missing, a description of the smoothing is used.} |
| \item{plot.type}{For multivariate time series, the type of plot |
| required. Only the first character is needed.} |
| \item{ylim, \dots}{Graphical parameters.} |
| } |
| \seealso{ |
| \code{\link{spectrum}} |
| } |
| \keyword{hplot} |
| \keyword{ts} |