The class project for Getting and Cleaning Data was to read in the "Human Activity Recognition Using Smartphones" data set, perform an analysis on the data set, and output a tidy data set.
Here are the steps that must be performed before running the R script:
- Download the zip file from this URL.
- Unzip the file.
- Move ALL of the following files to the SAME DIRECTORY as the R script:
features.txt
subject_train.txt
subject_test.txt
X_train.txt
X_test.txt
y_train.txt
y_test.txt
Once those steps are complete, you can run the R script (run_analysis.R). Note that it requires the reshape2 package, which can be downloaded from CRAN.
The output of the R script is a tidy data set, tidy.csv.
You can read more about the data and the analysis in the code book.