Usage
## S3 method for class 'spectral':
plot(x, labs, ylim, xlim, col, lty, lwd, fun, freq,
type = "l", power = FALSE, powcoeffs = c(10, 10), dbnorm = FALSE,
dbcoeffs = c(0, 0), legend = TRUE, axes = TRUE, ...)
Arguments
x
An EMU object of class 'spectral'
labs
An optional vector character labels. Must be the same length as
specdata
ylim
A two-element numeric vector for the y-axis range (see 'par')
xlim
A two-element numeric vector for the x-axis range (see 'par')
col
Specify a color - see 'mu.colour')
lty
Specify a linetype - see 'mu.colour'
lwd
Specify line thickness - see 'mu.colour'
fun
An R function name e.g., mean, var, sum, etc. The function is
applied separately to each category type specified in labs
freq
A numeric vector the same length as the number of columns in
specdata specifying the frequencies at which the spectral data is to be
plotted. If not supplied, defaults to trackfreq(specdata)
type
A single element character vector for the linetype
power
Logical. If T, then specdata (or specdata$data if specdata is
a trackdata object, is converted to a *
specdata$\mbox{\textasciicircum}$b, where a and b have the values
given in powcoeffs. This operation is applied before b
powcoeffs
A two-element numeric vector. Defaults to c(10, 10)
dbnorm
Logical. If T, apply dB-level normalization per spectrum as
defined by dbcoeffs below. Defaults to F.
dbcoeffs
A two element numeric vector (x, y). The spectra are
normalised in such a way that the values of each spectrum at a frequency of
y are set to a dB level of x. For example, to normalise the spectrum to 10
dB at 2000 Hz, set dbnorm to T and dbcoeffs to c(20
legend
Parameters for defining the legend. See 'mu.legend' for
further details
axes
A logical vector indicating whether the axes should be plotted
...
Further graphical parameters may be supplied.