datacleaning_coursera

Course project for the Getting and Cleaning Data class offered on Coursera

Files

• run_analysis.R : a R script that produces a dataset corresponding to the specification of the assignment
• CodeBook.md : a codebook that describes the variables of the tidy dataset produced by the run_analysis.R script
• submit.txt : the dataset produced by the script in txt format

run_analysis.R

run_analysis.R assumes that the dataset is stored in the directory UCI HAR Dataset. Ultimately, the script produces a dataframe named second_dataset that has the mean of select columns from the original dataset, grouped by both the subject who gathered the data and the activity they were performing at the time. A full description of the data can be found in CodeBook.md.

The dataset can be reproduced by running

source('run_analysis.R')

CodeBook.md

The codebook provides a description of the dataset as well information on how the data was summarized.

submit.txt

The file containing the original dataset submitted to Coursera for judgment.