| title | author | date |
|---|---|---|
Instructions for the script run_analysis.R |
Andreas Thuröe |
Thursday, August 13, 2015 |
##Introduction The script run_analysis.R is used to clean up and summarize accelerometer and gyroscope data from the Samsung Galaxy S smartphone. The original dataset is called 'Human Activity Recognition Using Smartphones Dataset'.
##Input - original "raw" dataset A full description of how the data was obtained is available here:
http://archive.ics.uci.edu/ml/datasets/Human+Activity+Recognition+Using+Smartphones
The script is assuming that the raw data is already downloaded, extracted and available in your working directory. The data can be downloaded from here:
https://d396qusza40orc.cloudfront.net/getdata%2Fprojectfiles%2FUCI%20HAR%20Dataset.zip
##Output The output of the script is a tidy dataset including the AVERAGE of the MEAN and STANDARD DEVIATION measurements per subject and activity
##Instructions
- Download data from link above and extract it into your R working directory (Keep the internal file structure of the downloaded package.)
- Run the script "run_analysis.R"
- The resulting dataframe is stored in a file called "tidy_data.txt"