HRV time-domain metrics (SDNN, RMSSD, pNN50)

Computes the standard HRV time-domain indices on an RR-interval series: SDNN, RMSSD, pNN50, mean RR, mean HR, and the HRV triangular index.

Usage

hrvtd(rr)

Arguments

rr

Numeric vector of RR intervals in milliseconds.

Value

List with value (SDNN), name, and extra (sdnn, rmssd, pnn50, mean_rr, mean_hr, hrv_triangular_index, n_intervals).

Details

Reference: Task Force (1996), Circulation 93(5):1043–1065.

Examples

# \donttest{
set.seed(1)
rr <- 800 + cumsum(rnorm(200, sd = 20))
res <- hrvtd(rr)
res$extra$rmssd
#> [1] 18.57438
# }