Repository for the Getting and Cleaning Data course @ Coursera.
In order to execute the run_analysis.R script, you need to set the current working directory in a folder containing the following files:
- activity_labels.txt
- features.txt
- subject_train.txt
- y_train.txt
- X_train.txt
- subject_test.txt
- y_test.txt
- X_test.txt
The execution of run_analysis.R create a tidy data set and write a file named tidydata.txt.
Remember, a tidy data set has the following caracteristics:
- each variables form a column
- each observations form a row
- each table store data about one class of experimental unit