Module utils 

tools / utilities to manipulate datasets & vectors

Functions

cumsum

numpy::cumsum direct equivalent

derivative

Computes derivative, converts data to fractional data
data: integrated data
returns: fractional data

diff

numpy::diff direct equivalent

fractional_freq_to_phase_time

Macro to convert fractional frequency data (n.a) to phase time (s)

fractional_integral

Integrates fractional data (n.a). data: raw fractional data (n.a)
sample_rate: sampling rate (Hz) during fract acquisition
returns: integrated data ((s) if input is fract. frequency)

nist_lag1d_autocorr

Identifies power law contained in given homogeneous serie.
data: input data serie
returns: mu/2, mu defined as -alpha-1, where alpha is the PSD slope

normalize

normalizes data[] by 1/norm.

phase_to_radians

Utility function to convert phase data (s) to phase (rad)
phase: phase data vector
f_0: norminal frequency

random

Generate size random symbols 0 < x <= 1.0f

to_fractional_frequency

Macro to convert frequency data (Hz) to fractional frequency (n.a)