fitVirusCV19_state (United States COVID-19 SIR Model)
Estimation of coronavirus COVID-19 epidemic evaluation by the SIR model, Code receives and plots data for the US obtained over the web.
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This code will retrieve recent state-level data from Wikipedia and attempts to fit it to a SIR model using structure created by Milan Batista.(https://www.mathworks.com/matlabcentral/fileexchange/74658-fitviruscovid19?s_tid=prof_contriblnk). The model is data-driven, so its forecast is as good as data are. Also, it is assumed that the model is a reasonable description of the one-stage epidemic.
Results are saved in structure res (see function fiVirusCV19_state header). Optionally the results may be printed by:
fitVirusCV19_state('Massachusetts','plt','on')
The plot may be enabled or disabled via (default is on):
fitVirusCV19_state('Massachusetts','prn','on')
To plot the growth rate on the figure use (def value is 2)
fitVirusCV19_state('Massachusetts','nsp',3)
A more detailed description can be found in:
https://www.researchgate.net/publication/339311383_Estimation_of_the_final_size_of_the_coronavirus_epidemic_by_the_SIR_model
Examples can be found in:
https://www.researchgate.net/publication/339912313_Forecasting_of_final_COVID-19_epidemic_size_200318
Cite As
Joshua McGee (2026). fitVirusCV19_state (United States COVID-19 SIR Model) (https://se.mathworks.com/matlabcentral/fileexchange/74813-fitviruscv19_state-united-states-covid-19-sir-model), MATLAB Central File Exchange. Retrieved .
Acknowledgements
Inspired by: CoronavirusDataByState, URL Read Table, fitVirusCOVID19
General Information
- Version 1.2.6 (4.5 MB)
MATLAB Release Compatibility
- Compatible with any release
Platform Compatibility
- Windows
- macOS
- Linux
| Version | Published | Release Notes | Action |
|---|---|---|---|
| 1.2.6 | updated 4/30 |
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| 1.2.5 | updated 4/18 |
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| 1.2.4 | update 4/17 |
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| 1.2.3 | -added notes and updated data 4/15 |
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| 1.2.2 | updated 4/15 |
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| 1.2.1 | updated small fixes 4/14 |
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| 1.2 | updated 4/13 |
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| 1.1.9 | updated 4/13, small bug fixes, an added table displaying summary statistics for each state |
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| 1.1.8 | -bug fixes and updates 4/12 |
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| 1.1.7 | updated 4/11 |
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| 1.1.6 | -updated 4/10 |
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| 1.1.5 | -updated 4/9 |
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| 1.1.4 | -updated 4/6 |
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| 1.1.3 | -updated |
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| 1.1.2 | -updates and small fixes |
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| 1.1 | -small updates and corrections |
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| 1.0.9 | -updated data 4/3 |
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| 1.0.8 | -image |
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| 1.0.7 | -added graphs for states that do not fit SIR model well to at least show data trends over time |
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| 1.0.6 | -cleaned up data to give better predictions
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| 1.0.5 | -image |
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| 1.0.4 | -fixed plot |
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| 1.0.3 | -added end date to plots |
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| 1.0.2 | -updated examples with new data |
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| 1.0.1 | -updated acknowledgements |
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| 1.0.0 |
