Getting and Cleaning Data Course Project
The run_analysis.R script turns messy Human Activity Recognition data into a tidy data set. The tidy dataset will be saved as "final.txt"
- The script assumes the data has already been downloaded and unzipped
- codebook.md has the structure of how the data needs to be saved for run_analysis.R to work
- The data will be loaded and tidied
- The relevant data will be extracted
- The dataset will be saved to a file in the working directory: final.txt
Information about final.txt:
- final.txt has 180 observations
- An observation is defined as each activity for each subject (30 subjects, 6 activities each)
- Measurements from 66 of the original features were used to create the final variables in the tidy data set
- final.txt can be read into R with: data <- read.table("final.txt", header = TRUE)