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Set electrode positions

Source: R/channels.R
setElectrodePositions.Rd

Assigns 3D electrode positions to channels.

Usage

setElectrodePositions(x, positions)

Arguments

x

A PhysioExperiment object.

positions

A data.frame or matrix with columns x, y, z and rows matching channels. Row names should match channel names.

Value

Modified PhysioExperiment object.

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

getElectrodePositions for reading positions, applyMontage for standard electrode layouts, channelInfo for full channel metadata

Examples

pe <- PhysioExperiment(
  assays = list(raw = matrix(rnorm(300), nrow = 100, ncol = 3)),
  colData = S4Vectors::DataFrame(label = c("Fz", "Cz", "Pz")),
  samplingRate = 100
)

# Set electrode positions
positions <- data.frame(
  x = c(0, 0, 0),
  y = c(0.71, 0, -0.71),
  z = c(0.71, 1, 0.71)
)
pe <- setElectrodePositions(pe, positions)