saulugo / getcleandataproject Goto Github PK

#Before you run the script This script uses the following R libraries:

• plyr
• dplyr

So BEFORE you run the script you must install these packages:

install.packages("plyr")

install.packages("dplyr")

#How to run this script Please follow these steps:

1. Clone this repo or if preferred, create a working directory and download the script file run_analysis.R into it.

2. Download the experiments dataset from this link: https://d396qusza40orc.cloudfront.net/getdata%2Fprojectfiles%2FUCI%20HAR%20Dataset.zip

3. IMPORTANT NOTE: the .zip file must be unzipped inside the working directory.

4. Source the run_analysis.R script:

source("run_analysis.R")

5. Call the function readData("the_name_of_your_dataset_directory")

readData(directory) #directory is a string with the name of the directory of the dataset

6. IMPORTANT NOTE: the function readData receives as a parameter the name of the directory in which the experiment dataset is located.

7. Wait a little while the script runs (it might take a couple of minutes!)

8. When the script ends, a file named summary_data.txt must has been created inside the working directory.

9. The file mentioned in the step 8 is the end result required in the question number 5 of the project description.