preprocFromDA1: Pre-processing of data using DA1 files
In martin-vasilev/EMreading: Automatic pre-processing of eye-movement reading data

preprocFromDA1

R Documentation

Pre-processing of data using DA1 files

Description

This function reads in data from .asc files and DA1 files (from EyeDoctor) and merges them together. It makes it possible to re-adjust the raw data for the vertical position of fixations using EyeDoctor's DA1 data after manual processing.

Usage

preprocFromDA1(
  data_dir = NULL,
  ResX = 1920,
  ResY = 1080,
  maxtrial = 999,
  tBlink = 150,
  padding = 0,
  addNonFixatedWords = TRUE,
  CrashOnMissingFix = FALSE,
  DontMapBlinks = TRUE
)

Arguments

`data_dir`	Input of data files to be processed, as a directory that contains BOTH the ASC and the DA1 files for all subjects
`ResX`	X screen resolution in pixels
`ResY`	Y screen resolution in pixels
`maxtrial`	Maximum number of trials in the experiment
`tBlink`	Time in milliseconds for detecting blinks before or after fixation. If there is a blink x milliseconds before or after the fixation, it will be marked as having a blink. The default is 50 ms.
`padding`	Padding amount used around the text margin (used to assign fixations close to the margin to a line). Default is 0. If padding is greater than 0, then all letter positions will be decremented by the specified number.
`addNonFixatedWords`	A logical indicating whether to add non-fixated words to the dataset (default= TRUE). Useful for skipping analyses, etc.
`CrashOnMissingFix`	A logical indicating whether to stop script if a DA1 fixation is not found in ASC data file. This can occur if you let EyeDoctor merge fixations.
`DontMapBlinks`	A logical indicating whether to map fixation type (progressive, regressive) if the there is a blink on the current fixation (or immediately before or after it, as determined by tBlink; see above). If set to TRUE (default), fixations types are not mapped.