plot.stft

0th

Percentile

Plot Short Time Fourier Transforms

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.

Keywords
ts
Usage
# S3 method for stft
plot(x, col = gray(63:0/63), …)
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.

Value

No return value. This function is only for plotting.

See Also

stft

Aliases
  • plot.stft
Examples
# NOT RUN {
x<-rnorm(500)
y<-stft(x)
plot(y)
# }
Documentation reproduced from package e1071, version 1.7-3, License: GPL-2 | GPL-3

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