harmonic.h File Reference

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Functions
static double	de (int n, double *ha, double *hx, double **M)
void	harmonic_decomposition (scalar s, double t, double *omega, scalar e={-1})
void	event_cleanup (void)
	Event: cleanup (t = end)

Variables
	attribute

Function Documentation

de()

static double de ( int  n, double *  ha, double *  hx, double **  M  )

static

Definition at line 26 of file harmonic.h.

References ha, hx, i, j, n, and x.

event_cleanup()

void event_cleanup

(

void

)

Event: cleanup (t = end)

Definition at line 189 of file harmonic.h.

References free(), matrix_free(), s, x, and Z.

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harmonic_decomposition()

void harmonic_decomposition	(	scalar	s,
		double	t,
		double *	omega,
		scalar	e = {-1}
	)

Definition at line 42 of file harmonic.h.

Variable Documentation

attribute

attribute

Initial value:

{
  struct {
    double * omega;
    scalar * A, * B, Z, E;
    double ** M, ** Mn;
    bool invertible; 
  } harmonic

Harmonic decomposition

The harmonic_decomposition() function performs a continuous, least-square fit of the coefficients \(Z\) and $(a_i,b_i)$ of the harmonic fonction

\[ Z + \sum_i a_i \cos(\omega_i t) + b_i \sin(\omega_i t) \]

to the scalar field s, with the \(\omega_i\) given as input.

If the optional argument e is given, it is used to store the residual (i.e. the standard deviation) of the fit.

Definition at line 17 of file harmonic.h.