Data report overview

The data set examined has the following dimensions:

Feature	Result
Number of observations	180
Number of variables	74

Data manipulation summary

The data set was originally sourced from UCI HAR and tidied into the presented format. The training and test data sets were processed in parallel by associating activity names to levels as described in activity_labels.txt and cleaning up variable names (extended descriptions added to labels after merging) before identifying and extracting only variables for which the mean and standard deviations are present. The combined data set was then used to calculate the average of each variable (mean and standard deviation) for each activity and subject.

Codebook summary table

Label	Variable	Class	# unique values
subject	subject	factor	30
activity	activity	factor	6
Time domain body-component accelerometer mean (x)	t_body_acc_mean_x	numeric	180
Time domain body-component accelerometer mean (y)	t_body_acc_mean_y	numeric	180
Time domain body-component accelerometer mean (z)	t_body_acc_mean_z	numeric	180
Time domain body-component accelerometer std (x)	t_body_acc_std_x	numeric	180
Time domain body-component accelerometer std (y)	t_body_acc_std_y	numeric	180
Time domain body-component accelerometer std (z)	t_body_acc_std_z	numeric	180
Time domain gravity-component accelerometer mean (x)	t_gravity_acc_mean_x	numeric	180
Time domain gravity-component accelerometer mean (y)	t_gravity_acc_mean_y	numeric	180
Time domain gravity-component accelerometer mean (z)	t_gravity_acc_mean_z	numeric	180
Time domain gravity-component accelerometer std (x)	t_gravity_acc_std_x	numeric	180
Time domain gravity-component accelerometer std (y)	t_gravity_acc_std_y	numeric	180
Time domain gravity-component accelerometer std (z)	t_gravity_acc_std_z	numeric	180
Time domain body-component accelerometer jerk mean (x)	t_body_acc_jerk_mean_x	numeric	180
Time domain body-component accelerometer jerk mean (y)	t_body_acc_jerk_mean_y	numeric	180
Time domain body-component accelerometer jerk mean (z)	t_body_acc_jerk_mean_z	numeric	180
Time domain body-component accelerometer jerk std (x)	t_body_acc_jerk_std_x	numeric	180
Time domain body-component accelerometer jerk std (y)	t_body_acc_jerk_std_y	numeric	180
Time domain body-component accelerometer jerk std (z)	t_body_acc_jerk_std_z	numeric	180
Time domain body-component gyroscopic mean (x)	t_body_gyro_mean_x	numeric	180
Time domain body-component gyroscopic mean (y)	t_body_gyro_mean_y	numeric	180
Time domain body-component gyroscopic mean (z)	t_body_gyro_mean_z	numeric	180
Time domain body-component gyroscopic std (x)	t_body_gyro_std_x	numeric	180
Time domain body-component gyroscopic std (y)	t_body_gyro_std_y	numeric	180
Time domain body-component gyroscopic std (z)	t_body_gyro_std_z	numeric	180
Time domain body-component gyroscopic jerk mean (x)	t_body_gyro_jerk_mean_x	numeric	180
Time domain body-component gyroscopic jerk mean (y)	t_body_gyro_jerk_mean_y	numeric	180
Time domain body-component gyroscopic jerk mean (z)	t_body_gyro_jerk_mean_z	numeric	180
Time domain body-component gyroscopic jerk std (x)	t_body_gyro_jerk_std_x	numeric	180
Time domain body-component gyroscopic jerk std (y)	t_body_gyro_jerk_std_y	numeric	180
Time domain body-component gyroscopic jerk std (z)	t_body_gyro_jerk_std_z	numeric	180
Time domain body-component accelerometer magnitude mean	t_body_acc_mag_mean	numeric	180
Time domain body-component accelerometer magnitude std	t_body_acc_mag_std	numeric	180
Time domain gravity-component accelerometer magnitude mean	t_gravity_acc_mag_mean	numeric	180
Time domain gravity-component accelerometer magnitude std	t_gravity_acc_mag_std	numeric	180
Time domain body-component accelerometer jerk magnitude mean	t_body_acc_jerk_mag_mean	numeric	180
Time domain body-component accelerometer jerk magnitude std	t_body_acc_jerk_mag_std	numeric	180
Time domain body-component gyroscopic magnitude mean	t_body_gyro_mag_mean	numeric	180
Time domain body-component gyroscopic magnitude std	t_body_gyro_mag_std	numeric	180
Time domain body-component gyroscopic jerk magnitude mean	t_body_gyro_jerk_mag_mean	numeric	180
Time domain body-component gyroscopic jerk magnitude std	t_body_gyro_jerk_mag_std	numeric	180
Frequency domain body-component accelerometer mean (x)	f_body_acc_mean_x	numeric	180
Frequency domain body-component accelerometer mean (y)	f_body_acc_mean_y	numeric	180
Frequency domain body-component accelerometer mean (z)	f_body_acc_mean_z	numeric	180
Frequency domain body-component accelerometer std (x)	f_body_acc_std_x	numeric	180
Frequency domain body-component accelerometer std (y)	f_body_acc_std_y	numeric	180
Frequency domain body-component accelerometer std (z)	f_body_acc_std_z	numeric	180
Frequency domain body-component accelerometer jerk mean (x)	f_body_acc_jerk_mean_x	numeric	180
Frequency domain body-component accelerometer jerk mean (y)	f_body_acc_jerk_mean_y	numeric	180
Frequency domain body-component accelerometer jerk mean (z)	f_body_acc_jerk_mean_z	numeric	180
Frequency domain body-component accelerometer jerk std (x)	f_body_acc_jerk_std_x	numeric	180
Frequency domain body-component accelerometer jerk std (y)	f_body_acc_jerk_std_y	numeric	180
Frequency domain body-component accelerometer jerk std (z)	f_body_acc_jerk_std_z	numeric	180
Frequency domain body-component gyroscopic mean (x)	f_body_gyro_mean_x	numeric	180
Frequency domain body-component gyroscopic mean (y)	f_body_gyro_mean_y	numeric	180
Frequency domain body-component gyroscopic mean (z)	f_body_gyro_mean_z	numeric	180
Frequency domain body-component gyroscopic std (x)	f_body_gyro_std_x	numeric	180
Frequency domain body-component gyroscopic std (y)	f_body_gyro_std_y	numeric	180
Frequency domain body-component gyroscopic std (z)	f_body_gyro_std_z	numeric	180
Frequency domain body-component accelerometer magnitude mean	f_body_acc_mag_mean	numeric	180
Frequency domain body-component accelerometer magnitude std	f_body_acc_mag_std	numeric	180
Frequency domain body-component accelerometer jerk magnitude mean	f_body_body_acc_jerk_mag_mean	numeric	180
Frequency domain body-component accelerometer jerk magnitude std	f_body_body_acc_jerk_mag_std	numeric	180
Frequency domain body-component gyroscopic magnitude mean	f_body_body_gyro_mag_mean	numeric	180
Frequency domain body-component gyroscopic magnitude std	f_body_body_gyro_mag_std	numeric	180
Frequency domain body-component gyroscopic jerk magnitude mean	f_body_body_gyro_jerk_mag_mean	numeric	180
Frequency domain body-component gyroscopic jerk magnitude std	f_body_body_gyro_jerk_mag_std	numeric	180
Time domain angle between the body-component accelerometer jerk mean and the gravity-component mean	angle_t_body_acc_jerk_mean_gravity_mean	numeric	180
Time domain angle between the body-component gyroscopic mean and the gravity-component mean	angle_t_body_gyro_mean_gravity_mean	numeric	180
Time domain angle between the body-component gyroscopic jerk mean and the gravity-component mean	angle_t_body_gyro_jerk_mean_gravity_mean	numeric	180
Angle (x) for the gravity-component mean	angle_x_gravity_mean	numeric	180
Angle (y) for the gravity-component mean	angle_y_gravity_mean	numeric	180
Angle (z) for the gravity-component mean	angle_z_gravity_mean	numeric	180

Variable list

subject

subject

Feature	Result
Variable type	factor
Number of missing obs.	0 (0 %)
Number of unique values	30
Mode	“1”
Reference category	1

Observed factor levels: "1", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "2", "20", "21", "22", "23", "24", "25", "26", "27", "28", "29", "3", "30", "4", "5", "6", "7", "8", "9".

activity

activity

Feature	Result
Variable type	factor
Number of missing obs.	0 (0 %)
Number of unique values	6
Mode	“walking”
Reference category	walking

Observed factor levels: "laying", "sitting", "standing", "walking", "walking_downstairs", "walking_upstairs".

t_body_acc_mean_x

Time domain body-component accelerometer mean (x)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	0.28
1st and 3rd quartiles	0.27; 0.28
Min. and max.	0.22; 0.3

t_body_acc_mean_y

Time domain body-component accelerometer mean (y)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.02
1st and 3rd quartiles	-0.02; -0.01
Min. and max.	-0.04; 0

t_body_acc_mean_z

Time domain body-component accelerometer mean (z)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.11
1st and 3rd quartiles	-0.11; -0.1
Min. and max.	-0.15; -0.08

t_body_acc_std_x

Time domain body-component accelerometer std (x)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.75
1st and 3rd quartiles	-0.98; -0.2
Min. and max.	-1; 0.63

t_body_acc_std_y

Time domain body-component accelerometer std (y)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.51
1st and 3rd quartiles	-0.94; -0.03
Min. and max.	-0.99; 0.62

t_body_acc_std_z

Time domain body-component accelerometer std (z)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.65
1st and 3rd quartiles	-0.95; -0.23
Min. and max.	-0.99; 0.61

t_gravity_acc_mean_x

Time domain gravity-component accelerometer mean (x)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	0.92
1st and 3rd quartiles	0.84; 0.94
Min. and max.	-0.68; 0.97

t_gravity_acc_mean_y

Time domain gravity-component accelerometer mean (y)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.13
1st and 3rd quartiles	-0.23; 0.09
Min. and max.	-0.48; 0.96

t_gravity_acc_mean_z

Time domain gravity-component accelerometer mean (z)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	0.02
1st and 3rd quartiles	-0.12; 0.15
Min. and max.	-0.5; 0.96

t_gravity_acc_std_x

Time domain gravity-component accelerometer std (x)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.97
1st and 3rd quartiles	-0.98; -0.95
Min. and max.	-1; -0.83

t_gravity_acc_std_y

Time domain gravity-component accelerometer std (y)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.96
1st and 3rd quartiles	-0.97; -0.94
Min. and max.	-0.99; -0.64

t_gravity_acc_std_z

Time domain gravity-component accelerometer std (z)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.95
1st and 3rd quartiles	-0.96; -0.92
Min. and max.	-0.99; -0.61

t_body_acc_jerk_mean_x

Time domain body-component accelerometer jerk mean (x)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	0.08
1st and 3rd quartiles	0.07; 0.08
Min. and max.	0.04; 0.13

t_body_acc_jerk_mean_y

Time domain body-component accelerometer jerk mean (y)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	0.01
1st and 3rd quartiles	0; 0.01
Min. and max.	-0.04; 0.06

t_body_acc_jerk_mean_z

Time domain body-component accelerometer jerk mean (z)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	0
1st and 3rd quartiles	-0.01; 0
Min. and max.	-0.07; 0.04

t_body_acc_jerk_std_x

Time domain body-component accelerometer jerk std (x)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.81
1st and 3rd quartiles	-0.98; -0.22
Min. and max.	-0.99; 0.54

t_body_acc_jerk_std_y

Time domain body-component accelerometer jerk std (y)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.78
1st and 3rd quartiles	-0.97; -0.15
Min. and max.	-0.99; 0.36

t_body_acc_jerk_std_z

Time domain body-component accelerometer jerk std (z)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.88
1st and 3rd quartiles	-0.98; -0.51
Min. and max.	-0.99; 0.03

t_body_gyro_mean_x

Time domain body-component gyroscopic mean (x)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.03
1st and 3rd quartiles	-0.05; -0.02
Min. and max.	-0.21; 0.19

t_body_gyro_mean_y

Time domain body-component gyroscopic mean (y)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.07
1st and 3rd quartiles	-0.09; -0.06
Min. and max.	-0.2; 0.03

t_body_gyro_mean_z

Time domain body-component gyroscopic mean (z)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	0.09
1st and 3rd quartiles	0.07; 0.1
Min. and max.	-0.07; 0.18

t_body_gyro_std_x

Time domain body-component gyroscopic std (x)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.79
1st and 3rd quartiles	-0.97; -0.44
Min. and max.	-0.99; 0.27

t_body_gyro_std_y

Time domain body-component gyroscopic std (y)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.8
1st and 3rd quartiles	-0.96; -0.42
Min. and max.	-0.99; 0.48

t_body_gyro_std_z

Time domain body-component gyroscopic std (z)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.8
1st and 3rd quartiles	-0.96; -0.31
Min. and max.	-0.99; 0.56

t_body_gyro_jerk_mean_x

Time domain body-component gyroscopic jerk mean (x)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.1
1st and 3rd quartiles	-0.1; -0.09
Min. and max.	-0.16; -0.02

t_body_gyro_jerk_mean_y

Time domain body-component gyroscopic jerk mean (y)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.04
1st and 3rd quartiles	-0.05; -0.04
Min. and max.	-0.08; -0.01

t_body_gyro_jerk_mean_z

Time domain body-component gyroscopic jerk mean (z)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.05
1st and 3rd quartiles	-0.06; -0.05
Min. and max.	-0.09; -0.01

t_body_gyro_jerk_std_x

Time domain body-component gyroscopic jerk std (x)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.84
1st and 3rd quartiles	-0.98; -0.46
Min. and max.	-1; 0.18

t_body_gyro_jerk_std_y

Time domain body-component gyroscopic jerk std (y)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.89
1st and 3rd quartiles	-0.98; -0.59
Min. and max.	-1; 0.3

t_body_gyro_jerk_std_z

Time domain body-component gyroscopic jerk std (z)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.86
1st and 3rd quartiles	-0.98; -0.47
Min. and max.	-1; 0.19

t_body_acc_mag_mean

Time domain body-component accelerometer magnitude mean

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.48
1st and 3rd quartiles	-0.96; -0.09
Min. and max.	-0.99; 0.64

t_body_acc_mag_std

Time domain body-component accelerometer magnitude std

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.61
1st and 3rd quartiles	-0.94; -0.21
Min. and max.	-0.99; 0.43

t_gravity_acc_mag_mean

Time domain gravity-component accelerometer magnitude mean

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.48
1st and 3rd quartiles	-0.96; -0.09
Min. and max.	-0.99; 0.64

t_gravity_acc_mag_std

Time domain gravity-component accelerometer magnitude std

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.61
1st and 3rd quartiles	-0.94; -0.21
Min. and max.	-0.99; 0.43

t_body_acc_jerk_mag_mean

Time domain body-component accelerometer jerk magnitude mean

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.82
1st and 3rd quartiles	-0.98; -0.25
Min. and max.	-0.99; 0.43

t_body_acc_jerk_mag_std

Time domain body-component accelerometer jerk magnitude std

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.8
1st and 3rd quartiles	-0.98; -0.22
Min. and max.	-0.99; 0.45

t_body_gyro_mag_mean

Time domain body-component gyroscopic magnitude mean

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.66
1st and 3rd quartiles	-0.95; -0.22
Min. and max.	-0.98; 0.42

t_body_gyro_mag_std

Time domain body-component gyroscopic magnitude std

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.74
1st and 3rd quartiles	-0.95; -0.36
Min. and max.	-0.98; 0.3

t_body_gyro_jerk_mag_mean

Time domain body-component gyroscopic jerk magnitude mean

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.86
1st and 3rd quartiles	-0.99; -0.51
Min. and max.	-1; 0.09

t_body_gyro_jerk_mag_std

Time domain body-component gyroscopic jerk magnitude std

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.88
1st and 3rd quartiles	-0.98; -0.58
Min. and max.	-1; 0.25

f_body_acc_mean_x

Frequency domain body-component accelerometer mean (x)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.77
1st and 3rd quartiles	-0.98; -0.22
Min. and max.	-1; 0.54

f_body_acc_mean_y

Frequency domain body-component accelerometer mean (y)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.59
1st and 3rd quartiles	-0.95; -0.06
Min. and max.	-0.99; 0.52

f_body_acc_mean_z

Frequency domain body-component accelerometer mean (z)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.72
1st and 3rd quartiles	-0.96; -0.32
Min. and max.	-0.99; 0.28

f_body_acc_std_x

Frequency domain body-component accelerometer std (x)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.75
1st and 3rd quartiles	-0.98; -0.2
Min. and max.	-1; 0.66

f_body_acc_std_y

Frequency domain body-component accelerometer std (y)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.51
1st and 3rd quartiles	-0.94; -0.08
Min. and max.	-0.99; 0.56

f_body_acc_std_z

Frequency domain body-component accelerometer std (z)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.64
1st and 3rd quartiles	-0.95; -0.27
Min. and max.	-0.99; 0.69

f_body_acc_jerk_mean_x

Frequency domain body-component accelerometer jerk mean (x)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.81
1st and 3rd quartiles	-0.98; -0.28
Min. and max.	-0.99; 0.47

f_body_acc_jerk_mean_y

Frequency domain body-component accelerometer jerk mean (y)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.78
1st and 3rd quartiles	-0.97; -0.2
Min. and max.	-0.99; 0.28

f_body_acc_jerk_mean_z

Frequency domain body-component accelerometer jerk mean (z)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.87
1st and 3rd quartiles	-0.98; -0.47
Min. and max.	-0.99; 0.16

f_body_acc_jerk_std_x

Frequency domain body-component accelerometer jerk std (x)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.83
1st and 3rd quartiles	-0.98; -0.25
Min. and max.	-1; 0.48

f_body_acc_jerk_std_y

Frequency domain body-component accelerometer jerk std (y)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.79
1st and 3rd quartiles	-0.97; -0.17
Min. and max.	-0.99; 0.35

f_body_acc_jerk_std_z

Frequency domain body-component accelerometer jerk std (z)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.9
1st and 3rd quartiles	-0.98; -0.54
Min. and max.	-0.99; -0.01

f_body_gyro_mean_x

Frequency domain body-component gyroscopic mean (x)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.73
1st and 3rd quartiles	-0.97; -0.34
Min. and max.	-0.99; 0.47

f_body_gyro_mean_y

Frequency domain body-component gyroscopic mean (y)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.81
1st and 3rd quartiles	-0.97; -0.45
Min. and max.	-0.99; 0.33

f_body_gyro_mean_z

Frequency domain body-component gyroscopic mean (z)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.79
1st and 3rd quartiles	-0.96; -0.26
Min. and max.	-0.99; 0.49

f_body_gyro_std_x

Frequency domain body-component gyroscopic std (x)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.81
1st and 3rd quartiles	-0.98; -0.48
Min. and max.	-0.99; 0.2

f_body_gyro_std_y

Frequency domain body-component gyroscopic std (y)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.8
1st and 3rd quartiles	-0.96; -0.42
Min. and max.	-0.99; 0.65

f_body_gyro_std_z

Frequency domain body-component gyroscopic std (z)

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.82
1st and 3rd quartiles	-0.96; -0.39
Min. and max.	-0.99; 0.52

f_body_acc_mag_mean

Frequency domain body-component accelerometer magnitude mean

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.67
1st and 3rd quartiles	-0.96; -0.16
Min. and max.	-0.99; 0.59

f_body_acc_mag_std

Frequency domain body-component accelerometer magnitude std

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.65
1st and 3rd quartiles	-0.95; -0.37
Min. and max.	-0.99; 0.18

f_body_body_acc_jerk_mag_mean

Frequency domain body-component accelerometer jerk magnitude mean

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.79
1st and 3rd quartiles	-0.98; -0.19
Min. and max.	-0.99; 0.54

f_body_body_acc_jerk_mag_std

Frequency domain body-component accelerometer jerk magnitude std

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.81
1st and 3rd quartiles	-0.98; -0.27
Min. and max.	-0.99; 0.32

f_body_body_gyro_mag_mean

Frequency domain body-component gyroscopic magnitude mean

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.77
1st and 3rd quartiles	-0.96; -0.41
Min. and max.	-0.99; 0.2

f_body_body_gyro_mag_std

Frequency domain body-component gyroscopic magnitude std

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.77
1st and 3rd quartiles	-0.95; -0.43
Min. and max.	-0.98; 0.24

f_body_body_gyro_jerk_mag_mean

Frequency domain body-component gyroscopic jerk magnitude mean

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.88
1st and 3rd quartiles	-0.98; -0.58
Min. and max.	-1; 0.15

f_body_body_gyro_jerk_mag_std

Frequency domain body-component gyroscopic jerk magnitude std

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.89
1st and 3rd quartiles	-0.98; -0.61
Min. and max.	-1; 0.29

angle_t_body_acc_jerk_mean_gravity_mean

Time domain angle between the body-component accelerometer jerk mean and the gravity-component mean

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	0
1st and 3rd quartiles	-0.02; 0.02
Min. and max.	-0.12; 0.2

angle_t_body_gyro_mean_gravity_mean

Time domain angle between the body-component gyroscopic mean and the gravity-component mean

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	0.02
1st and 3rd quartiles	-0.02; 0.06
Min. and max.	-0.39; 0.44

angle_t_body_gyro_jerk_mean_gravity_mean

Time domain angle between the body-component gyroscopic jerk mean and the gravity-component mean

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.02
1st and 3rd quartiles	-0.06; 0.03
Min. and max.	-0.22; 0.18

angle_x_gravity_mean

Angle (x) for the gravity-component mean

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	-0.74
1st and 3rd quartiles	-0.79; -0.58
Min. and max.	-0.95; 0.74

angle_y_gravity_mean

Angle (y) for the gravity-component mean

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	0.17
1st and 3rd quartiles	0.02; 0.24
Min. and max.	-0.87; 0.42

angle_z_gravity_mean

Angle (z) for the gravity-component mean

Feature	Result
Variable type	numeric
Number of missing obs.	0 (0 %)
Number of unique values	180
Median	0.01
1st and 3rd quartiles	-0.08; 0.11
Min. and max.	-0.87; 0.39

Report generation information:

Created by: Ryan H.B. Smith (username: rhyde).
Report creation time: Fri Dec 31 2021 16:41:31
Report was run from directory: C:/Users/rhyde/Documents/Coursera/data_cleaning/week_4/GaCD_wk4_wearable
dataReporter v1.0.2 [Pkg: 2021-11-11 from CRAN (R 4.1.2)]
R version 4.1.2 (2021-11-01).
Platform: x86_64-w64-mingw32/x64 (64-bit)(Windows 10 x64 (build 19042)).
Function call: dataReporter::makeDataReport(data = summ_data, mode = c("summarize", "visualize", "check"), smartNum = FALSE, file = "CodeBook.Rmd", checks = list(character = "showAllFactorLevels", factor = "showAllFactorLevels", labelled = "showAllFactorLevels", haven_labelled = "showAllFactorLevels", numeric = NULL, integer = NULL, logical = NULL, Date = NULL), listChecks = FALSE, maxProbVals = Inf, codebook = TRUE, reportTitle = "Codeboook for summary data calculated from the UCI HAR data set for the Coursera Course 'Getting and Cleaning Data'")

Files

CodeBook.md

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