| Austria | Cases of the first 149 days of the Covid-19 pandemic in Austria. | 
| cEVI_fun | Calculation of the convergence Epidemic Volatility Index | 
| deviant | This function produces the Epidemic Volatility Index based output data (beta) | 
| deviant_update | This function is used after first running the deviant function | 
| evi | Calculation of the Epidemic Volatility Index | 
| evi.graphs | This function produces plots of the time series data with the EVI predictions. | 
| evifcut | Sensitivity-Specificity estimation for each cut-off value and rolling window size | 
| evirlap | Combining multiple epidemic volatility indices into a multi-early warning index plot | 
| indic | Issue of an Early Warning | 
| Italy | Cases of the first 149 days of the Covid-19 pandemic in Italy. | 
| medvol | Function that calculates the standard deviation | 
| mova | Function that calculates the moving average of a time series | 
| rollsd | Rolling standard deviation | 
| status | A function that defines the true status based on the case definition |