This contains the files for the Coursera Getting And Cleaning Data course project.
download.R An R script to download and unzip the raw data files into the current directory.
run_analysis.R An R script to clean up the data downloaded by the download.R script. This will create a file called summary.txt with the cleaned up table.
The output file summary.txt will contain the following columns:
subject
The identifier of the person doing the activity (integer)
activity
The name of the activity being performed (character string)
tbodyacc.mean.x tbodyacc.mean.y tbodyacc.mean.z
Mean of body acceleration in the x, y and z axis (floating point)
tbodyacc.std.x tbodyacc.std.y tbodyacc.std.z
Standard deviation of body acceleration in the x, y and z axis (floating point)
tgravityacc.mean.x tgravityacc.mean.y tgravityacc.mean.z
Mean of gravitational acceleration in the x, y and z axis (floating point)
tgravityacc.std.x tgravityacc.std.y tgravityacc.std.z
Standard deviation of gravitational acceleration in the x, y and z axis (floating point)
tbodyaccjerk.mean.x tbodyaccjerk.mean.y tbodyaccjerk.mean.z
Mean of derivative of linear acceleration (jerk) in t�he x, y and z axis (floating point)
tbodyaccjerk.std.x tbodyaccjerk.std.y tbodyaccjerk.std.z
Standard deviation of derivative of linear acceleration (jerk) in the x, y and z axis (floating point)
tbodygyro.mean.x tbodygyro.mean.y tbodygyro.mean.z
Mean of angular acceleration in the x, y and z axis (floating point)
tbodygyro.std.x tbodygyro.std.y tbodygyro.std.z
Standard deviation of angular acceleration in the x, y and z axis (floating point)
tbodygyrojerk.mean.x tbodygyrojerk.mean.y tbodygyrojerk.mean.z
Mean of derivative of angular acceleration in the x, y and z axis (floating point)
tbodygyrojerk.std.x tbodygyrojerk.std.y tbodygyrojerk.std.z
Standard deviation of derivative of angular accelera�tion in the x, y and z axis (floating point)
tbodyaccmag.mean tbodyaccmag.std
Mean and standard deviation of magnitude of body acceleration (floating point)
tgravityaccmag.mean tgravityaccmag.std
Mean and standard deviation of magnitude of gravitational acceleration (floating point)
tbodyaccjerkmag.mean tbodyaccjerkmag.std
Mean and standard deviation of derivative of body acceleration magnitude (floating point)
tbodygyromag.mean tbodygyromag.std
Mean and standard deviation of angular acceleration magnitude (floating point)
tbodygyrojerkmag.mean tbodygyrojerkmag.std
Mean and standard deviation of derivative of angular acceleration magnitude (floating point)
fbodyacc.mean.x fbodyacc.mean.y fbodyacc.mean.z
Mean FFT of body acceleration in the x, y and z axis (floating point)
fbodyacc.std.x fbodyacc.std.y fbodyacc.std.z
Standard deviation of FFT of body acceleration in the x, y and z axis (floating point)
fbodyaccjerk.mean.x fbodyaccjerk.mean.y fbodyaccjerk.mean.z
Mean FFT of body jerk in the x, y and z axis (floating point)
fbodyaccjerk.std.x fbodyaccjerk.std.y fbodyaccjerk.std.z
Standard deviation of FFT of body jerk in the x, y and z axis (floating point)
fbodygyro.mean.x fbodygyro.mean.y fbodygyro.mean.z
Mean of FFT of angular acceleration in the x, y and z axis (floating point)
fbodygyro.std.x fbodygyro.std.y fbodygyro.std.z
Standard deviation of FFT of angular acceleration in the x, y and z axis (floating point)
fbodyaccmag.mean fbodyaccmag.std
Mean and standard deviation of FFT of magnitude of body acceleration (floating point)
fbodybodyaccjerkmag.mean fbodybodyaccjerkmag.std fbodybodygyromag.mean fbodybodygyromag.std fbodybodygyrojerkmag.mean fbodybodygyrojerkmag.std
I have no idea what thhttps://github.com/davekirby/GCD_Projectese mean! (floating point)