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Discover powerful new features for your analysis, developed based on years of user feedback.
Available for All Users:- Polar Plot: Analyze the phase and amplitude of your rhythms.
- Lomb-Scargle Periodogram: Detect dominant periods in your data.
- Goodness of Fit Stats: Evaluate your model with R² and Correlation (R).
- Multi-Dataset Comparison: Visualize multiple Cosinor fits in a single plot.
- Data Export to CSV: Download your results for further analysis and publications.
- Saved Results History: Securely access and manage all your past analyses anytime.
Ready to unlock all features? Registration is free and simple.
Circadian Rhythms and Time-Dependent Biological ProcessesBiological rhythms — especially circadian (~24 h) and ultradian cycles — reflect how internal and environmental factors shape physiological processes over time. Cosinor.Online is a free, browser-based tool that helps researchers analyse such time-distributed data using the classic cosinor method: Y = M + A × cos(2π × (t – φ) / T) . No installation or coding is required.
Enter your data How to cite Cosinor.OnlineMolcan, L. (2019). Time-distributed data analysis by Cosinor. bioRxiv, 805960. https://doi.org/10.1101/805960
Lubos Molcan, Ph.D., info@cosinor.online Support Cosinor.OnlineAlthough this project is free for everyone, hosting and domain costs have increased significantly. If you appreciate this project, consider contributing any amount to help keep it running.
Support Cosinor.Online
Although this project is free for everyone, hosting and domain costs have increased significantly. If you appreciate this project, consider contributing.