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| RE: Questions and recommendation to CalculatePowerBand [ Reply ] By: Abraham Otero on 2023-05-11 14:14 | [forum:49663] |
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1. Just do: HRVData=CreateFreqAnalysis(HRVData) HRVData=CalculatePSD(HRVData, "pgram") # get Energy in the default ULF, VLF and LF frequency bands. CalculateEnergyInPSDBands(HRVData) 2.If you're familiar with the short Fourier transform, I don't think it makes sense for you to try to change the parameters that are used by default. Regards, |
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| Questions and recommendation to CalculatePowerBand [ Reply ] By: Jonas Schaarup on 2023-05-01 07:09 | [forum:49661] |
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I have data with heart rate recordings for a week. I would like to calculate a summarized single measurement of the various frequency domain indices. I have some challenges with the output of CalculatePowerBand and how to define the size, shift, and sizesp. I hope you can help me with these two questions. 1. In the rHRV it shows that meanHF, meanLF, and so forth should be available. However, when I run the CalculatePowerBand function, these measurements are not visible in the hrv.data. Should I just calculate these by hand? If so, is it just taking the mean of all frequency windows e.g. all HF windows? 2. Can you elaborate or refer to me how I define size, shift, and sizesp in the CalculatePowerBand function? I have read the rHRV book but I find it difficult to decide the size of these estimates. Otherwise, I really enjoy the book and its description. Thank you for providing such a nice and reproducible tool. Best, Jonas |
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