Covid-19 viewer
After library(covid19ViewerShiny), user only need to enter launch_app() to run the Shiny app.
The app will be slowly reloaded because of the large size of covid dataset. So, please be patient and give it some time.
This App is used to monitor global covid-19 cases and deaths, and it can compare the covid-19 cases in different countries.
There are four tabs: Map, Table, Graphs, and `About.
Map: This tab has two leaflet maps. The first one shows the global cumulative_cases. The second one shows the global cumulative_deaths. Because the dataset contains huge amount of values, the leaflet maps take much time to run. So, please be patient.Table: This tab shows the latest covid-19 new_cases, cumulative_cases, new_deaths, and cumulative_deaths of selected countries. User can select multiple countries to compare them.Graphs: There are one column plot and one line plot in this tab. The column plot help user compare the latest cumulative_cases and cumulative_deaths of selected countries. The line plot tells user the new_cases and new_deaths of selected countries. With these two plots, user can understand how successful selected countries control the coronavirus pandemic.About: This tab has short introduction about Covid-19 viewer and its creator. It also contains the Acknowledgments and References sections.