Forum: open-discussion

RE: Loading Polar Data [ Reply ] By: Arturo J. Mendez on 2020-05-27 08:08	[forum:47817]
In fact is a field of investigation. Different works different HRV indexes.

RE: Loading Polar Data [ Reply ] By: Abraham Otero on 2020-05-26 13:30	[forum:47810]
I'm afraid the package doesn't directly calculate that "Stress index". You are going to have to calculate it from the heart rate variability indexes on which it depeds.

RE: Loading Polar Data [ Reply ] By: Joan Gibert on 2020-05-26 05:14	[forum:47809]
The devices we are working with are Polar H10 sensors. Cheers

RE: Loading Polar Data [ Reply ] By: Joan Gibert on 2020-05-26 05:12	[forum:47808] sahoo2019.pdf (4752) downloads
Thanks for the answer, I'm asking for the model info. I will come back with this as soon as I know. Besides this, I am trying to find a way to calculate some 'Stress index' like in the attached paper. Is there any way to get this kind of metric with RHRV library? Again, sorry for the probably naive question. Quite new in the HRV field.

RE: Loading Polar Data [ Reply ]
By: Abraham Otero on 2020-05-24 15:41

[forum:47801]

Indeed it seems that this format is not exactly the same as the one we knew. Would you mind indicating the model of the device you are using?

Below these lines is a function named LoadBeatPolar2 that should properly load the RR intervals of this format (although not the header date and time information).

LoadBeatPolar2 <-function (HRVData, RecordName, RecordPath = ".")
{
dir = getwd()
on.exit(setwd(dir))
setwd(RecordPath)
dateinfo = "19000101"
timeinfo = "00:00:00.0"
datetimeinfo = paste(dateinfo, timeinfo)
HRVData$datetime = datetimeaux
tmp=read.table(RecordName, skip=6)
HRVData$Beat$RR = tmp[,2]
HRVData$Beat$Time = cumsum(HRVData$Beat$RR)/1000
print(paste("Number of beats:", length(HRVData$Beat$Time)))
return(HRVData)
}

hrv.data = CreateHRVData()
hrv.data = SetVerbose(hrv.data, TRUE )
hrv.data = LoadBeatPolar2(hrv.data,"HR_12.1.20_10.59 a.txt")
hrv.data = BuildNIHR(hrv.data)
PlotNIHR(hrv.data)

Loading Polar Data [ Reply ]
By: Joan Gibert on 2020-05-23 11:33

[forum:47800]

HR_12.1.20_10.59 a.txt (35) downloads

Hi,
Completely new in this world, so apologies in advance if the question is already solved elsewhere (or completely naive), didn't found it.

I am trying to upload HR data extracted from Polar device. I guess that the version you used is not the same as the one I am working with (attached). Also, I tried to upload only the HR values but I got most of them removed.
Is that a usual behaviour? Why are those duplicated entries removed?
What do you recommend me for performing analysis in this kind of data? I mainly want to check HRV in this kind of files.
Thanks