Get current reference

Returns the current reference electrode information.

Usage

getCurrentReference(x)

Arguments

x

A PhysioExperiment object.

Value

A character string describing the current reference (e.g., "average", "Cz", "M1+M2"), or NULL if no reference has been set.

References

Nunez, P.L. & Srinivasan, R. (2006). "Electric Fields of the Brain." 2nd ed. Oxford University Press.

See also

rereference() for changing the reference, isAverageReferenced() for checking average reference status.

Examples

pe <- PhysioExperiment(
  assays = list(raw = matrix(rnorm(100), nrow = 10, ncol = 10)),
  samplingRate = 100
)
pe <- setReference(pe, "Cz")
getCurrentReference(pe)  # "Cz"
#> [1] "Cz"