Get reference electrode

Get reference electrode

Usage

getReference(x)

Arguments

x

A PhysioExperiment object.

Value

Character string of reference electrode or NULL.

References

Oostenveld R, Fries P, Maris E, Schoffelen JM (2011). "FieldTrip: Open source software for advanced analysis of MEG, EEG, and invasive electrophysiological data." Computational Intelligence and Neuroscience, 2011, 156869.

See also

setReference for setting the reference, channelInfo for full channel metadata

Examples

pe <- PhysioExperiment(
  assays = list(raw = matrix(rnorm(400), nrow = 100, ncol = 4)),
  samplingRate = 100
)
pe <- setReference(pe, "Cz")
getReference(pe)  # "Cz"
#> [1] "Cz"