baseline: baseline

In stw32/PulseWaveform: Extraction of Photoplethysmography Waveform Features and Decomposition Modeling of Pulse Waveforms

baseline

Description

baseline generates a spline to fit the wandering baseline of the PPG time series and subtracts it from the time series.

Usage

baseline(inx, iny, o, dat, sp, plot = FALSE)

Arguments

inx	A vector of all inflection point x-coordinates in the PPG time series
iny	A vector of all inflection point y-coordinates in the PPG time series
o	A vector of all O points
dat	The original PPG time series (preprocessed)
sp	The original PPG time series, polynomial spline form
plot	Logical, plots baseline spline and the original PPG time series

Value

baseCor

time series with baseline wander removed

Note

Given baseline drift is indicative of vasomotion and respiratory modulation, it may be of interest to extract the spline.

Examples

baseCor <- baseline(inx = inflexX, iny = inflexY, o = o_orig,
                    dat = undetrended, sp = splinePoly, plot=F)

stw32/PulseWaveform documentation built on Dec. 6, 2022, 2:50 a.m.