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Normalization by maximum PSD value while calculating frequency based HRV metrics

2

I understand the rationale to normalize PSD values by the maximum PSD value since it makes it easier to compare different PSD methods (at least visually). (normalize=True is the default...

himalayajung

hrv frequency domain features

3

I have one query related to the hrv frequency domain features, like LF, and HF. What is the unit of the lf and hf output parameters?

tankmitesh

Question on page /_modules/neurokit2/ecg/ecg_clean.html

3

I want to know the meaning of butterworth_zi. What kind of method is this? For example, in the qrs algorithm of pan-tomp, there are differential, integral, and moving average calculations,...

PhD-GOAT

About recall rsp_analyze function

7

This is a template for reporting a bug. You can remove it and write from scratch. These sections are a rough guide, but the important thing is to give enough...

Hannahhanhan555

urllib.error.URLError: <urlopen error [Errno 11004] getaddrinfo failed>

4

I am interested in your code, but when i download data , it has error as follows my python code : # Load NeuroKit and other useful packages import neurokit2...

xuexiaoxiaohu

Issue computing ApEn with scikit-learn version 1.3.1

6

**Describe the bug** Tried to run `hrv()` after upgrading from scikit-learn 1.3.0 to 1.3.1 and got the following error: ``` out["ApEn"], _ = entropy_approximate(rri, delay=1, dimension=2, tolerance=tolerance) /neurokit2/complexity/entropy_approximate.py", line 100,...

danibene

Largest Lyapunov Exponent (complexity_lyapunov method) - incorrect result for Lorenz system

6

**Overview of Problem** I have been trying to get NeuroKit2 to give a suitable result for the Largest Lyapunov Exponent via the complexity_lyapunov method. Before using it on a set...

contentsciences

RRV calculation alpha 2

3

In description, RRV_DFA_alpha2 need at least 640 breath intervals to calculate. But in rsp_rrv.py, line 237-245: ` if len(bbi) > 65: out["DFA_alpha2"] = fractal_dfa(bbi, scale=np.arange(16, 65), multifractal=False)[0] # For multifractal...

bluesgu

ecg_peaks (method='neurokit') sometimes fails on ECG's with missing data

12

**Describe the bug** On certain ECG's with missing data or longer periods of constant values (e.g. zeros), `ecg_peaks` with `method="neurokit"` fails to find all but two peaks. Below I attached...

tecamenz

Cleaning PPG data

5

Hello NeuroKit Team: I have a question about cleaning PPG data. I used nk.ppg_clean() to clean raw PPG, process with nk.ppg_process() and got the diagram with nk.ppg_plot(). In the diagram,...

wchiaching6