GOAL:- Prepare tidy data that can be used for later analysis

Details are in the notebook.

The dataset hereby used is Human Activity Recognition Database. The data in fact are recordings of 30 subjects performing daily activities and the source of data is from waist mounted smartphone which is embedded with inertial sensors.

In this the script run_analysis.r, downloads the file if its not in the working directory. Next it unzips the file and then the given task are performed accordingly.

Each and every step has been done in JUPYTER NOTEBOOK and shows the data cleaning.