Extract HRV recurrence quantification analysis features — extract_gazepoint_hrv

Computes dependency-light recurrence quantification analysis (RQA) features from IBI/RR intervals. This is intended as a compact nonlinear HRV summary and not as a clinical diagnostic tool.

Usage

extract_gazepoint_hrv_rqa(
  dat,
  ibi_col = "IBI",
  group_cols = NULL,
  embedding_dimension = 2,
  delay = 1,
  radius = NULL,
  radius_multiplier = 0.2,
  min_line_length = 2
)

Arguments

dat: A data frame.
ibi_col: Numeric IBI/RR interval column.
group_cols: Optional grouping columns.
embedding_dimension: Embedding dimension for phase-space reconstruction.
delay: Delay used in embedding.
radius: Radius for recurrence threshold. If NULL, uses radius_multiplier * SD.
radius_multiplier: Multiplier used when radius = NULL.
min_line_length: Minimum diagonal/vertical line length.

Value

A list with overview, features, and settings.