Compute a matrix of stages transitions counts. — transitions • rsleep

Compute a matrix of stages transitions counts.

transitions(
  hypnogram,
  stages = c("AWA", "REM", "N1", "N2", "N3"),
  plot = FALSE
)

Arguments

hypnogram: A hypnogram dataframe. Dataframe must contain begin (POSIXt), end (POSIXt) and event (character) columns.
stages: Stages to include in transitions Defaults to c("N1", "N2", "N3", "N4", "REM").
plot: Plot the transition matrix or not. Takes "heatmap" to plot a heatmap of transitions or FALSE to return the matrix as a dataframe without plotting it.

Value

A matrix with count of stages transitions, or a plot.

Examples

download.file("https://rsleep.org/data/hypnodensity.csv", "hypnodensity.csv")

hypnodensity <- read.csv2("hypnodensity.csv")

unlink("hypnodensity.csv")

events <- hypnogram(hypnodensity)

transitions(events, plot = "heatmap")