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This project forked from tanmaykm/accel_analysis
Analysis of accelerometer data from Samsung Galaxy S phones
accel_analysis's Introduction
- Clone this repository
- Download the data set and extract. It should result in a
UCI HAR Dataset
folder that has all the files in the required structure.
- Change current directory to the
UCI HAR Dataset
folder.
- Run
Rscript <path to>/run_analysis.R
- The tidy dataset should get created in the current directory as
tidy.txt
- Code book for the tidy dataset is available here
- The training and test data are available in folders named
train
and test
respectively.
- For each of these data sets:
- Measurements are present in
X_<dataset>.txt
file
- Subject information is present in
subject_<dataset>.txt
file
- Activity codes are present in
y_<dataset>.txt
file
- All activity codes and their labels are in a file named
activity_labels.txt
.
- Names of all measurements taken are present in file
features.txt
ordered and indexed as they appear in the X_<dataset>.txt
files.
- All columns representing means contain
...mean()
in them.
- All columns representing standard deviations contain
...std()
in them.
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