Get electrode positions

Get electrode positions

Usage

getElectrodePositions(x)

Arguments

x

A PhysioExperiment object.

Value

A data.frame with x, y, z columns or NULL if not set.

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

setElectrodePositions for setting positions, applyMontage for standard electrode layouts, channelNames for channel labels

Examples

pe <- PhysioExperiment(
  assays = list(raw = matrix(rnorm(300), nrow = 100, ncol = 3)),
  colData = S4Vectors::DataFrame(label = c("Fz", "Cz", "Pz")),
  samplingRate = 100
)
pe <- applyMontage(pe, "10-20")
getElectrodePositions(pe)
#>   channel x     y    z
#> 1      Fz 0  0.71 0.71
#> 2      Cz 0  0.00 1.00
#> 3      Pz 0 -0.71 0.71