Download & Source Code
GitHub Repository
Access the full source code, validation scripts, and sample datasets:
https://github.com/attilaasghari/Heart-Rate-Fragmentation-HRF
Direct Source Code Download
Precompiled Binary (Windows)
Standalone executable for Windows (no Python required):
sha256:301d4944e2f0ca441ae1d401d2bb3823ba152f2add8d425d6e7013632b9656d9
Sample Datasets (Original HRF Sources)
These validation datasets are derived directly from the original PhysioNet Heart Rate Fragmentation software. They reproduce the timing, annotations, and variability of true ECG R-peak sequences used in the foundational HRF study. All metrics shown below were computed with this Python GUI implementation and verified to match the original AWK results.
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timeseries_1PVC.txt
download datasetRealistic R-peak sequence including one PVC beat. 61 records.
Processed records (NR): 61 Inflection Points (IP): 27 NN_total (denominator for PIP): 47 PIP = 27/47 = 57.447 % Accelerative short count: 19 Accelerative long count: 16 N_acc_dec (short+long): 35 PNNSS = 19/35*100 = 54.286 % PNNLS = 16/42*100 = 38.095 % -
timeseries_1PVC_1outlier.txt
download datasetSequence with one PVC and one outlier interval, simulating mild artifact or ectopic distortion.
Processed records (NR): 61 Inflection Points (IP): 28 NN_total (denominator for PIP): 46 PIP = 28/46 = 60.870 % Accelerative short count: 20 Accelerative long count: 15 N_acc_dec (short+long): 35 PNNSS = 20/35*100 = 57.143 % PNNLS = 15/43*100 = 34.884 % -
timeseries_1PVC_2outliers.txt
download datasetSequence with one PVC and two outliers, representing high fragmentation and low rhythm stability.
Processed records (NR): 61 Inflection Points (IP): 30 NN_total (denominator for PIP): 46 PIP = 30/46 = 65.217 % Accelerative short count: 21 Accelerative long count: 15 N_acc_dec (short+long): 36 PNNSS = 21/36*100 = 58.333 % PNNLS = 15/43*100 = 34.884 %
Usage Instructions
- Open one or more R-peak files using the "Open R-peak File(s)" button.
- Click "Run Analysis" to compute metrics and generate plots.
- Export results using "Export Results (CSV + Plot)" for research or publication purposes.
- View your recently used files via the dropdown menu for quick access.
- Optional: Customize NN_min, NN_max, or sampling frequency in the settings file.
Visual Overview
NN intervals are plotted with inflection points marked as red dashed lines, enabling rapid identification of fragmentation events.
Heart Rate Fragmentation Analyzer in action: metrics computed from timeseries_1PVC.txt with NN interval plot showing inflection points (red dashed lines).
