An object of class "stft" is plotted as a gray scale image.
The x-axis corresponds to time, the y-axis to frequency. If the
default colormap is used, dark regions in the plot correspond to high
values at the particular time/frequency location.
Usage
# S3 method for stft
plot(x, col = gray(63:0/63), ...)
Value
No return value. This function is only for plotting.
Arguments
x
An object of class "stft" as obtained by the function
stft.
col
An optional colormap. By default 64 gray values are used,
where white corresponds to the minimum value and black to the
maximum.
...
further arguments to be passed to or from methods.