This code relies on R dplyr package, so please install it in order to execute R scripts without errors. Then, to get a tidy dataset from HAR dataset, simply clone this repository:
$ git clone https://github.com/sbaga90/datasciencecoursera.gitYou don't need to download HAR dataset, the script will download it for you and will do all the operations on data to get a tidy dataset. In your R session change the current working directory into the directory in which you clone this project with setwd(). Simply you have to source run_analysis.R with:
source("run_analysis.R")Then the script will download the HAR dataset in a temporary dataset, it will unpack the archive file, it will read file and it will do all the necessary operations to get a tidy_dataset data frame and a tidy_dataset.txt text file. The tidy_dataset.txt is the same uploaded in Coursera Project.