FilterNIHR {RHRV}R Documentation

Artefact filter based in an adaptive threshold

Description

An algorithm that uses adaptive thresholds for rejecting those beats different from the given threshold more than a certain value. The rule for beat acceptation or rejection is to compare with previous, following and with the updated mean. We apply also a comparison with acceptable physiological values (25 and 200 bpm).

Usage

FilterNIHR(Data, long = 50, mini = 12, maxi = 20, fixed = 10, last = 13, verbose = FALSE)

Arguments

Data Data structure that stores the beats register and all the information obtained from it
long Number of beats to calculate the updated mean
mini Minimum threshold
maxi Maximum threshold
fixed Fixed part of the threshold
last Initial threshold
verbose Boolean argument that allows to specify if the function returns additional information

Value

Returns Data, the structure that contains beat positions register, associated heart rate instantaneous values also, and now filtered heart rate signal

Author(s)

M. Lado, A. Mendez, D. Olivieri, L. Rodriguez, X. Vila

References

X. Vila, F. Palacios, J. Presedo, M. Fernandez-Delgado, P. Felix, S. Barro, "Time-Frequency analysis of heart-rate variability," IEEE Eng. Med. Biol. Magazine 16, 119-125 (1997) L. Rodriguez-Linares, X. Vila, A. Mendez, M. Lado, D. Olivieri, "RHRV: An R-based software package for heart rate variability analysis of ECG recordings," 3rd Iberian Conference in Systems and Information Technologies (CISTI 2008), Proceedings I, 565-573 (2008)


[Package RHRV version 1.6.2 Index]