plot-WspecMat {tuneR}R Documentation

Plotting WspecMat objects

Description

Plotting a spectogram (image) of an object of class Wspec or WspecMat.

Usage

## S4 method for signature 'WspecMat, missing':
plot(x, xlab = "time", ylab = "Frequency", 
    xunit = c("samples", "time"), log = "", ...)
## S4 method for signature 'Wspec':
image(x, xlab = "time", ylab = "Frequency", 
    xunit = c("samples", "time"), log = "", ...)

Arguments

x Object of class WspecMat (for plot) or Wspec (for image).
xlab, ylab Label for x-/y-axis.
xunit Character indicating which units are used to annotate the x axis. If xunit = "time", the unit is time in seconds, otherwise the number of samples.
log Character - "z" if the z values are to be logarithmic.
... Further arguments to be passed to the underlying image function. See image for details.

Details

Calling image on a Wspec object converts it to class WspecMat and calls the corresponding plot function.
Calling plot on a WspecMat object generates an image with correct annotated axes.

Author(s)

Uwe Ligges, ligges@statistik.tu-dortmund.de

See Also

see image, Wspec, WspecMat, periodogram and tuneR for the constructor function and some examples.


[Package tuneR version 0.2-10 Index]