Absolute extrema: |
26 |
a_max |
maximum value (positive amplitude) |
27 |
t_max |
relative time location of a_max |
28 |
a_min |
the minimum value (negative amplitude) |
29 |
t_min |
relative time location of a_min |
30 |
max_a |
maximum absolute value |
31 |
max_t |
relative time location of max_a |
Local extrema: |
32 |
mean_t_max |
mean time across all relative maxima |
33 |
mean_dt_max |
mean-time difference across all relative maxima |
34 |
std_t_max |
standard deviation over the time of all relative maxima |
35 |
std_dt_max |
standard deviation over the time difference between all relative maxima |
36 |
n_max |
number of local maxima |
37 |
mean_t_min |
mean-time across all relative minima |
38 |
mean_dt_min |
mean-time difference across all relative minima |
39 |
std_t_min |
standard deviation over the time of all relative minima |
40 |
std_dt_min |
standard deviation over the time difference between all relative minima |
41 |
n_min |
number of local minima |
42 |
mean_t_zero |
mean-time across all zero-crossing |
43 |
std_t_zero |
standard deviation over the time of all zero-crossing |
44 |
mean_dt_zero |
mean-time difference across all zero-crossing |
45 |
std_dt_zero |
standard deviation over the time difference between all zero-crossing |
46 |
mean_t_max |
mean-time across all relative maxima |
Structural: |
47 |
n_broken |
number of discontinuities on the derivative of the signal |
48 |
skewness |
the relative position of the maximum absolute value of the signal around the middle point of the interval |