README.md

In etc5523-2020/r-package-assessment-petestylianos: Contains a Shiny App with Summaries, Analytics and News related to COVID-19

covidExplorer

covidExplorer contains a Shiny app with summaries, analytics and news related to COVID-19. Download the package and launch the Shiny app to interactively browse data and news regarding the spread of COVID-19 in various countries. The app also enables the user to scrape data from Twitter. Refer to section Twitter Tab for more info.

Installation

You can install the current version from GitHub with:

# install.packages("devtools")
devtools::install_github("etc5523-2020/r-package-assessment-petestylianos")

Access the app without loading the package

The app is also accessible from https://petestylianos.shinyapps.io/covid-explorer/

Example

To launch the app:

library(covidExplorer)
covidExplorer::launch_app()

Twitter Tab

To be able to search Twitter on your RSudio you need to be able to run the following commands:

api_key \<- ‘YOUR API KEY’

api_secret \<- ‘YOUR API SECRET’

access_token \<- ‘YOUR ACCESS TOKEN’

access_token_secret \<- ‘YOUR ACCESS TOKEN SECRET’

setup_twitter_oauth(api_key,api_secret)

To obtain this tokens and keys you need to log in to Twitter with your account, or create one if necessary. Then you need to setup an application: click on “My Applications” and then click on “Create new application”. Almost thre, fill in the blank boxes and a new screen will appear with your private keys and token. The final step is to install twitteR from GitHub using the devtools package and run the first 5 commands at the beginning of the section. For further instruction refer to: Twitter Authentication with R, Authenticate.twitter and Twitter Authentication with R.

Required Packages

In order for all tabs of the app to work properly you need to have the following packages installed:

library(classInt)
library(coronavirus)
library(COVID19)
library(DT)
library(leaflet)
library(ggthemes)
library(glue)
library(htmlwidgets)
library(maps)
library(patchwork)
library(plotly)
library(RColorBrewer)
library(scales)
library(shiny)
library(shinycssloaders)
library(shinydashboard)
library(shinydashboardPlus)
library(shinythemes)
library(shinyWidgets)
library(stringr)
library(tidycovid19)
library(tidytext)
library(dplyr)
library(tidyr)
library(twitteR)

Exported Fucntions

my_theme()

Use it to add the custom theme found in the app’s figures

library(tibble)
library(ggplot2)

 df <- tibble(x = 1:10,
               y = log(x))
 fig <- ggplot(df, aes(x, y)) +
   geom_line()

 covidExplorer::my_theme(fig)

etc5523-2020/r-package-assessment-petestylianos documentation built on Jan. 1, 2021, 1:12 a.m.