Extract time-varying spectral EDA features — extract_gazepoint_eda

Computes a dependency-light approximation of TVSymp-style time-varying spectral EDA power using sliding-window spectral analysis. The default band is 0.08–0.24 Hz, following the TVSymp literature. This function does not claim exact VFCDM reproduction.

Usage

extract_gazepoint_eda_tvsymp(
  dat,
  eda_col = "GSR_US",
  time_col = "CNT",
  group_cols = NULL,
  sampling_rate = NULL,
  band = c(0.08, 0.24),
  window_seconds = 60,
  step_seconds = 5,
  min_valid_fraction = 0.7,
  normalise = TRUE
)

Arguments

dat: A data frame containing EDA data.
eda_col: Numeric EDA/conductance column.
time_col: Numeric time column.
group_cols: Optional grouping columns.
sampling_rate: Optional sampling rate in Hz. If NULL, estimated from time_col.
band: Frequency band in Hz used for TVSymp-style power.
window_seconds: Sliding-window length in seconds.
step_seconds: Sliding-window step in seconds.
min_valid_fraction: Minimum valid fraction per window.
normalise: Logical. If TRUE, compute EDASympn-style relative band power normalised by total positive-frequency power.

Value

A list with overview, tvsymp_timeseries, summary, and settings.