Practical Big Data Analytics

Putting it all together - The CMS Open Payments application

In the prior sections, we have learned how to:

• Download the datasets
• Create the backend database
• Create the code for the backend database
• Set up RStudio
• Create the R Shiny application

To start the application, complete the following steps:

1. Start the Q application, make sure you are in the home directory. Type pwd and hit Enter. This will show the present working directory of /home/packt as shown in the coming image.

2. Next, type q and hit Enter.
3. At the q prompt, type in \l cms.q.

Note that cms.q is the file we created in our earlier section when developing the Q application.

The script will load the database and return back to the q) prompt:

Putting it all together: Loading ...