#' Export mouse-tracking data.
#'
#' \code{mt_export_long} and \code{mt_export_wide} can be used for exporting
#' mouse-tracking data from a mousetrap data object in long or wide format. If
#' desired, additional data (stored in \code{data[[use2]]}) can be merged with
#' the trajectory data before export. \code{mt_export_long} and
#' \code{mt_export_wide} are wrapper functions for \link{mt_reshape}.
#'
#' @inheritParams mt_reshape
#' @param use a character string specifying which data should be exported. The
#' corresponding data are selected from data using \code{data[[use]]}.
#' Usually, this value corresponds to either "trajectories" or
#' "tn_trajectories", depending on whether the raw or the time-normalized
#' trajectories should be exported.
#' @param use_variables a character vector specifying which mouse-tracking
#' variables should be exported. This corresponds to the labels of the
#' trajectory array dimensions. If unspecified, all variables will be
#' exported.
#' @param use2_variables an optional character string (or vector) specifying the
#' variables (in \code{data[[use2]]}) that should be merged with the data.
#' @param ... additional arguments passed on to \link{mt_reshape} (such as
#' \code{subset}).
#'
#' @return A \link{data.frame} containing the exported data.
#'
#' @seealso \link{mt_import_long} for importing mouse-tracking data saved in a
#' long format.
#'
#' \link{mt_import_wide} for importing mouse-tracking data saved in a wide
#' format.
#'
#' @examples
#' # Export data in long format
#' # (and include information about condition and subject_nr)
#' mt_data_long <- mt_export_long(mt_example,
#' use2_variables=c("subject_nr","Condition"))
#'
#' # Export data in wide format
#' # (and include information about condition and subject_nr)
#' mt_data_wide <- mt_export_wide(mt_example,
#' use2_variables=c("subject_nr","Condition"))
#'
#' @author
#' Pascal J. Kieslich
#'
#' Felix Henninger
#'
#' @describeIn mt_export_long Export mouse-tracking data in long format
#' @export
mt_export_long <- function(data,
use="trajectories", use_variables=NULL,
use2="data", use2_variables=NULL,
...) {
return(mt_reshape(
data=data,
use=use, use_variables=use_variables,
use2=use2, use2_variables=use2_variables,
trajectories_long=TRUE,
aggregate=FALSE,
aggregate_subjects_only=FALSE,
...
))
}
#' @describeIn mt_export_long Export mouse-tracking data in wide format
#' @export
mt_export_wide <- function(data,
use="trajectories", use_variables=NULL,
use2="data", use2_variables=NULL,
...) {
return(mt_reshape(
data=data,
use=use, use_variables=use_variables,
use2=use2, use2_variables=use2_variables,
trajectories_long=FALSE,
aggregate=FALSE,
aggregate_subjects_only=FALSE,
...
))
}
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