Baseline-correct Gazepoint pupil size — baseline_correct_gazepoint

Applies subtractive or divisive baseline correction to pupil-size data within trials or other grouping units.

Usage

baseline_correct_gazepoint_pupil(
  dat,
  pupil_col = NULL,
  time_col = "CNT",
  stimulus_onset_col = NULL,
  trial_cols = NULL,
  baseline_window = c(-240, -200),
  baseline_function = c("median", "mean"),
  correction = c("subtract", "divide"),
  suffix = "_baseline_corrected",
  min_baseline_rows = 2,
  overwrite = FALSE
)

Arguments

dat: A data frame containing pupil-size data.
pupil_col: Pupil column. If NULL, common Gazepoint pupil columns are detected.
time_col: Time column.
stimulus_onset_col: Optional stimulus-onset column. If supplied, baseline windows are interpreted relative to onset.
trial_cols: Trial/grouping columns.
baseline_window: Numeric vector of length two defining the baseline window relative to stimulus onset.
baseline_function: "median" or "mean".
correction: "subtract" or "divide".
suffix: Suffix for corrected output column.
min_baseline_rows: Minimum finite baseline rows required.
overwrite: Logical. If FALSE, existing output columns are protected.

Value

A data frame with a corrected pupil column and baseline attributes.