author: MaurĂcio Camargo
date: 26 - April - 2015
This is the course project from Data Products, part of Coursera Data Science Specialization, by Johns Hopkins University.
This project has two parts. First, a simple Shiny application must be created and deployed on Rstudio's servers. Second, a reproducible pitch presentation about the application must be prepared on Slidify or RStudio.
The links for the Shiny application (World Population Ranking) and its corresponding code on GitHub are listed below:
The data used by this application is extracted from googleVis package and is listed as the Population data set. You can see below how the data used on the app is organized:
Rank Country Population
1 1 China 1339940000
2 2 India 1188650000
3 3 United States 310438000
4 4 Indonesia 237556363
5 5 Brazil 193626000
6 6 Pakistan 170745000
User can control the N number of the Top N Most Populated Countries, by using the slider. It is also possible to zoom into a region though the radio buttons. Besides that, by pressing play/pause button it is possible to increase N as an animation.
The app creates an interactive chart, according to user control options. Below is an example of the app-generated chart.