gettingandcleaningdata-coursera
Unzip the data to your working directory https://d396qusza40orc.cloudfront.net/getdata%2Fprojectfiles%2FUCI%20HAR%20Dataset.zip
Save run_analysis.R and from R Studio: source("path/run_analysis.R")
This script:
Merges the training and the test sets to create one data set. (merged_clean_data.txt) Extracts only the measurements on the mean and standard deviation for each measurement. Uses descriptive activity names to name the activities in the data set Appropriately labels the data set with descriptive activity names. Creates a second, independent tidy data set with the average of each variable for each activity and each subject. (data_set_with_the_averages.txt)