Get participants from a BIDS project — participants • bidser

This function retrieves a vector of unique participant IDs from a BIDS project. It extracts the subject identifiers from the project's data table, filtering out any NA values. Participant IDs in BIDS typically follow the format 'sub-XX'.

Usage

participants(x, ...)

# S3 method for class 'bids_project'
participants(x, ...)

Arguments

x: the bids_project object
...: extra args passed to methods

Value

A character vector of unique participant IDs found in the BIDS project. If no participants are found or the 'subid' column doesn't exist in the project's data table, returns an empty character vector.

Examples

# \donttest{
# Get participants from a BIDS project
tryCatch({
  ds001_path <- get_example_bids_dataset("ds001")
  proj <- bids_project(ds001_path)
  participants(proj)
  
  # Clean up
  unlink(ds001_path, recursive=TRUE)
}, error = function(e) {
  message("Example requires internet connection: ", e$message)
})
# }