Statistics Department - UFMG/Brazil

App instructions

 

Data Graph for COVID-19 infected cases and deaths:

When starting the App, two graphs will appear related to Brazil. The first one shows the COVID-19 daily cases/deaths, while the second one shows the cumulative COVID-19 cases/deaths. See the examples listed in the figures below.

  1. In the first graph, the blue dots indicate the COVID-19 data for each day, while the red ones indicate COVID-19 daily deaths.
  2. In the second graph, the blue dots indicate the cumulative COVID-19 cases, while the red ones indicate the cumulative COVID-19 deaths.
  3. All dot values (blue and red ones) can be revealed just by hovering the cursor point through them.
  4. Also, it is possible to use the button below the graph to download the data.
  5. In the menu above, there is a selection box that can be used to change the country and provinces (available for some countries only).
  6. Also in the menu above, it is possible to select just the confirmed cases, the death cases, and also choose a Log-scaled vertical axis. 

 

Short term forecast of confirmed cases/deaths of COVID-19:

By clicking on the second tab at the top of the App page, the short term forecast of confirmed cases in the country selected in the previous tab for 14 days ahead appears. The menu at the top of the graph allows us to select the countries with available results and states for some countries.

 

  1. The vertical line indicates today, splitting out the observed data from forecasts.
  2. The blue dots indicate the COVID-19 cumulated confirmed cases. The red ones indicate the COVID-19 cumulated deaths (when this option is selected on the menu at the top of the graph).
  3. The black dots on the right of the vertical line indicate the point forecasts for COVID-19 cumulated cases/deaths for each day in the future (14 days ahead).
  4. There are some tools on the right side of the graph that can be used to zoom into the graph (magnifier button) and to pan the region of the graph (arrows button). It is also possible to download a copy of the graph shown as a png file (camera button).
  5. The shaded area indicates the 95% credibility intervals for future forecasts.
  6. All dot values (blue, red, black or shaded ones) can be shown just by hovering the cursor point through them.
  7. All curves can be hidden or shown just by clicking on the legend at the top left of the graph. The Log-scaled vertical axis can be obtained by selecting the corresponding option. All these options are at the top of the graph.
  8. All the data can be downloaded by using the download button on the bottom right corner.

Long term forecast of confirmed cases/deaths of COVID-19:

By clicking on the third tab at the top of the App page, it will appear the long-term forecast graph of confirmed cases of COVID-19 for the country selected in one of the previous tab appears.

  1. The vertical line indicates today, splitting out the observed data from forecasts.
  2. The blue dots indicate the COVID-19 daily confirmed cases. The red dots indicate the COVID-19 daily deaths (when this option is selected on the menu at the top of the graph).
  3. The black dots indicate the COVID-19 daily forecast cases/deaths for each day in the long-term future.
  4. The shaded area indicates the 95% credibility intervals for future forecasts.
  5. All curves can be hidden or shown just by clicking on the legend in the upper left corner of the graph.
  6. Both the estimated points and the credibility intervals for the peak date of the number of confirmed cases/deaths are obtained by using the credibility intervals from the forecasts.
  7. In the same way, both the estimated points and the credibility intervals are obtained for the total number of cases/deaths and for the end date of 99% of cases by using the forecasts.
  8. The orange line indicates the estimated mean of daily confirmed cases/deaths from the present to the future for all the considered data range.
  9. Both the plot data and the summary box information can be downloaded by using the download buttons on the lower right corner.

For an explanation of some of the features of the application, see the video of the Interview for UFRJ Science and Culture Forum (in portuguese).