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Plot Poincare (Lorenz) Recurrence Map

Source: R/ecg-plot.R
plotPoincare.Rd

Scatters each RR interval against the next (\(RR_n\) vs \(RR_{n+1}\)) and overlays the Poincare SD1/SD2 dispersion ellipse from ecgHRVpoincare. The SD1 and SD2 used for the ellipse are attached as the "sd1"/"sd2" attributes of the returned plot.

Usage

plotPoincare(rr)

Arguments

rr

An rr data.frame or an object from ecgProcess.

Value

A ggplot object with "sd1"/"sd2" attributes (per channel).

References

Brennan, M., Palaniswami, M. & Kamen, P. (2001). Do existing measures of Poincare plot geometry reflect nonlinear features of heart rate variability? IEEE TBME, 48(11), 1342-1347.

See also

ecgHRVpoincare, ecgHRVnonlinear

Examples

pe <- make_ecg(30000, sr = 500)
rr <- ecgRRintervals(pe, ecgDetectRpeaks(pe))
plotPoincare(rr)