ieegio (version 0.0.4)

read_brainvis: Read 'BrainVision' data

Description

Read 'BrainVision' data

Usage

read_brainvis(
  file,
  extract_path = getOption("ieegio.extract_path", NULL),
  header_only = FALSE,
  cache_ok = TRUE,
  verbose = TRUE
)

Value

A cached object that is readily to be loaded to memory; see SignalDataCache for class definition.

Arguments

file

file path to the data file

extract_path

location to where the extracted information is to be stored

header_only

whether to only load header data

cache_ok

whether existing cache should be reused; default is TRUE. This input can speed up reading large data files; set to FALSE to delete cache before importing.

verbose

whether to print processing messages; default is TRUE

Examples

if( ieegio_sample_data("brainvis.dat", test = TRUE) ) {
  # ensure the header and marker files are downloaded as well
  ieegio_sample_data("brainvis.vhdr")
  ieegio_sample_data("brainvis.dat")
  file <- ieegio_sample_data("brainvis.vmrk")

  x <- read_brainvis(file)
  print(x)

  x$get_header()

  x$get_channel_table()

  x$get_annotations()

  channel <- x$get_channel(10)

  plot(
    channel$time,
    channel$value,
    type = "l",
    main = channel$info$Label,
    xlab = "Time",
    ylab = channel$info$Unit
  )
}