RHRT (version 1.0.1)

calcAvHRT: Calculate an avHRT object

Description

For each index the average of the intervals across all HRTs in the HRTList is calculated and the averaged HRT returned. The type of averaging, the order of HRT parameter assessment and interval lengths for normalising TS can be passed.

Usage

calcAvHRT(
  HRTListObj,
  av = mean,
  orTO = "avAfter",
  orTS = "avBefore",
  IL = HRTListObj@IL,
  normIL = c_normIL,
  normHallstrom = TRUE,
  coTO = COTO,
  coTS = COTS,
  coTT = COTT
)
# S4 method for HRTList
calcAvHRT(
  HRTListObj,
  av = mean,
  orTO = "avAfter",
  orTS = "avBefore",
  IL = HRTListObj@IL,
  normIL = c_normIL,
  normHallstrom = TRUE,
  coTO = COTO,
  coTS = COTS,
  coTT = COTT
)

Arguments

HRTListObj

HRTList object

av

(Function) Type of averaging the VPCSs, either mean or median

orTO

(Character) Order in which TO was calculated, either "avAfter" (assessment of parameter and averaging) or "avBefore" (averaging of the VPCSs and assessment of parameter)

orTS

(Character) Order in which TS was calculated, either "avAfter" (assessment of parameter and averaging) or "avBefore" (averaging of the VPCSs and assessment of parameter)

IL

(Numeric) The overall arithmetic mean of the interval length of the measurement to normalise TS

normIL

(Numeric) The interval length to which TS should be normalised

normHallstrom

(Boolean) Should the normalisation of Hallstrom be used?

coTO

(Numeric) Cut-off value for TO

coTS

(Numeric) Cut-off value for TS and nTS

coTT

(Numeric) Cut-off value for TT

Value

(avHRT) The avHRT object of the given HRTList

Details

To eliminate other RR variability TS is commonly assessed after averaging the VPCSs. TO is commonly first calculated from the single VPCS and then averaged. (See 'Heart Rate Turbulence: Standards of Measurement, Physiological Interpretation, and Clinical Use, Axel Bauer et al., Journal of the American College of Cardiology, Volume 52, Issue 17, Pages 1353-1365')

Examples

# NOT RUN {
# You need an HRTList
hrtl <- vectorToHRT(testdataLong, testdataLong_Ann)

# Recalculate the avHRT with different normalisation
calcAvHRT(hrtl, normIL = 1000, normHallstrom = FALSE)

# Recalculate the avHRT based on a different calculation order
calcAvHRT(hrtl, orTO = "avBefore", orTS = "avAfter")

# Set custom parameter cut-offs for the reliability check
## You should keep in mind to give the same cut-offs when calling getResults()
calcAvHRT(hrtl, coTO = 0.022, coTS = 1.42, coTT = 12)

# }