Plot wavelet coherence time-frequency map — plotWaveletCoherence • PhysioCrossModal

Displays wavelet coherence (or wavelet PLV) as a filled time-frequency heatmap with optional Cone of Influence (COI) overlay.

Usage

plotWaveletCoherence(
  result,
  show_coi = TRUE,
  title = "Wavelet Coherence",
  fill_label = "Coherence",
  ...
)

Arguments

result: List returned by waveletCoherence or waveletPLV.
show_coi: Logical; overlay COI boundary (default TRUE if coi is present in the result).
title: Character plot title (default "Wavelet Coherence").
fill_label: Character legend label (default "Coherence").
...: Additional arguments passed to ggplot2::theme().

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

See also

waveletCoherence(), waveletPLV(), plotCoherenceSpectrum()

Examples

sr <- 200
t <- seq(0, 2, length.out = sr * 2)
x <- sin(2 * pi * 10 * t) + 0.3 * rnorm(length(t))
y <- 0.8 * sin(2 * pi * 10 * t) + 0.3 * rnorm(length(t))
result <- waveletCoherence(x, y, sr = sr, frequencies = seq(5, 20))
if (requireNamespace("ggplot2", quietly = TRUE)) {
  plotWaveletCoherence(result)
}