README

prerequisites

The script is using dplyr package, so it should be installed prior to running the script.

data

Please run run_analysis.R in the directory where UCI HAR Dataset.zip is located and unzipped. The directory structure should be as follows:

• UCI HAR Dataset
  • test
    • X_test.txt
    • subject_test.txt
    • y_test.txt
  • train
    • X_train.txt
    • subject_train.txt
    • y_train.txt
  • README.txt
  • activity_labels.txt
  • features.txt
  • features_info.txt
• CodeBook.md
• README.md
• run_analysis.R
• UCI HAR Dataset.zip

run_analysis.R script is using variable names defined in UCI HAR Dataset/features.txt filtered according to the instructions. After running the script, variable answer will contain result required in step 5 of the project.