Plot power spectral density

Generates a PSD plot for specified channels.

Usage

plotPSD(x, channels = NULL, sample = 1L, log_scale = TRUE, freq_range = NULL)

Arguments

x

A PhysioExperiment object.

channels

Integer vector of channel indices. If NULL, plots all.

sample

Integer index for the sample (for 3D data).

log_scale

Logical. If TRUE, uses log scale for power.

freq_range

Numeric vector of length 2 specifying frequency range.

Value

A ggplot object.

References

Wickham, H. (2016). ggplot2: Elegant Graphics for Data Analysis. Springer-Verlag New York. doi:10.1007/978-3-319-24277-4

Delorme, A. & Makeig, S. (2004). "EEGLAB: an open source toolbox for analysis of single-trial EEG dynamics including independent component analysis." Journal of Neuroscience Methods, 134(1), 9-21. doi:10.1016/j.jneumeth.2003.10.009

See also

plotSignal() for time-domain signal plots, fftSignals() for FFT computation, bandPower() for frequency band power extraction, plotSpectrogram() for time-frequency visualization.