Fuse respiration proxies using a Kalman filter — fuse_gazepoint_respiration

Fuses two respiration proxy streams, such as PPG-derived respiration and ECG-derived respiration, using a transparent one-dimensional Kalman filter. This is a linear Kalman fusion helper. It is not an extended Kalman filter unless the user supplies nonlinear state/measurement logic externally.

Usage

fuse_gazepoint_respiration_kalman(
  dat,
  primary_col,
  secondary_col,
  time_col = NULL,
  group_cols = NULL,
  process_var = 0.01,
  primary_var = 0.05,
  secondary_var = 0.05,
  output_col = "respiration_kalman_fused"
)

Arguments

dat: A data frame.
primary_col: First respiration proxy column.
secondary_col: Second respiration proxy column.
time_col: Optional time column.
group_cols: Optional grouping columns.
process_var: Process variance.
primary_var: Measurement variance for primary_col.
secondary_var: Measurement variance for secondary_col.
output_col: Output fused respiration column.

Value

A data frame with fused respiration output and Kalman attributes.