SIR and SEIR model fitting for 2019-nCoV.

SIR model and SEIR model. Pleas search on internet for more details of these infectious disease models.

Fitting method: Self defined grid search method to find all minimum value. See the grid_search function in fit.py for details.

Data source: https://3g.dxy.cn/newh5/view/pneumonia

y axis：people

x axis：days (origin point is 2020-12-8)

SIR model fittng:

SIR model fittng:

高预测：

低预测：

SIR model fittng:

高预测：

中预测：

低预测：

SIR model fittng:

SIR model fittng: