Plot an ERP image from a single electrode. Smooths over a series of trials in order to make across-trial patterns more apparent.
erp_image(data, ...) # S3 method for default erp_image(data, electrode = "Cz", time_lim = NULL, smoothing = 10, clim = NULL, interpolate = FALSE, ...) # S3 method for eeg_epochs erp_image(data, electrode = "Cz", time_lim = NULL, smoothing = 10, clim = NULL, interpolate = FALSE, ...) # S3 method for eeg_ICA erp_image(data, component = "Comp1", smoothing = 10, clim = NULL, interpolate = FALSE, ...)
data | Data frame to be plotted. Requires an amplitude column. |
---|---|
... | Other arguments passed to the method. |
electrode | electrode at which to generate an ERP image. |
time_lim | Time limits of plot |
smoothing | Number of trials to smooth over when generating image |
clim | Character vector of min and max values of plotting colour range. e.g. c(-5,5). Defaults to min and max. |
interpolate | Perform interpolation to produce smoother looking plots. Defaults to FALSE. |
component |
|
default
: Default function operates on normal data frames
eeg_epochs
: Create an erp_image
from eeg_epochs
eeg_ICA
: Plot component image from eeg_ICA
erp_image(demo_epochs, electrode = "A31")erp_image(demo_epochs, electrode = "A31", interpolate = TRUE)erp_image(demo_epochs, electrode = "A31", smoothing = 5)