Extract frequency-domain EDA spectral power — extract_gazepoint_eda_spectral

Computes power spectral density summaries for an EDA signal, including spectral power in the EDASymp-inspired 0.045–0.25 Hz band. This is a descriptive spectral feature and should not be interpreted as direct stress, emotion, valence, cognition, trust, preference, or diagnosis.

Usage

extract_gazepoint_eda_spectral_power(
  dat,
  eda_col = "GSR_US",
  time_col = NULL,
  group_cols = NULL,
  sampling_rate = NULL,
  band = c(0.045, 0.25),
  min_samples = 32,
  detrend = TRUE
)

Arguments

dat: A data frame containing EDA data.
eda_col: EDA/conductance column.
time_col: Optional time column.
group_cols: Optional grouping columns.
sampling_rate: Optional sampling rate in Hz. Required if time_col does not allow sampling-rate estimation.
band: Numeric vector of length two defining the frequency band in Hz.
min_samples: Minimum finite samples per group.
detrend: Logical. If TRUE, remove a linear trend before spectral analysis.

Value

A list with overview, spectral_summary, settings, and interpretation text.