Create epochs from EEG data

Source: R/data_epoching.R

Creates epochs around specified event triggers. Requires data of class eeg_data. Where multiple events are specified, epochs will be created around each event.

epoch_data(data, ...)

# S3 method for eeg_data
epoch_data(
  data,
  events,
  time_lim = c(-1, 1),
  baseline = "none",
  epoch_labels = NULL,
  ...
)

Arguments

data

Continuous data to be epoched.
...

Parameters passed to functions
events

Character vector of events to epoch around.
time_lim

Time in seconds to form epoch around the events. Defaults to one second either side.
baseline

Baseline times to subtract. Can be set to a numeric vector of length two to specify a time window to use as a baseline in each epoch (e.g. c(-.1, 0)), "none", which will perform no baseline correction, or NULL to use the mean of the whole epoch. As of v0.6 of eegUtils, the default is "none".
epoch_labels

Character vector of same length as events which'll be used to label the epochs.

Value

Returns an epoched object of class eeg_epochs

Methods (by class)

  • eeg_data: Epoch eeg_data objects

Author

Matt Craddock matt@mattcraddock.com