plot.stft {e1071} | R Documentation |
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.
plot.stft(Y, col=gray(63:0/63))
Y |
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. |
No return value. This function is only for plotting.
Andreas Weingessel
stft
x<-rnorm(500) y<-stft(x) plot(y)