ne_per_lib.h File Reference

Performance measure library. More...

#include "ne_std.h"
#include "ne_per.h"
#include "ne_dyn_vec.h"

Go to the source code of this file.

Functions
ne_per_t *	ne_per_top_eigenratio_alloc (void)
	Allocate eigenratio topological performance measure for network laplcaican.
double	ne_per_top_eigenratio (ne_sys_t *sys, ne_dyn_vec_t *dyn, ne_real_t *params)
	Eigenratio performance measure function.
ne_per_t *	ne_per_dyn_orderparam_alloc (ne_real_t delta)
	Allocate order parameter dynamical performance measure.
double	ne_per_dyn_orderparam (ne_sys_t *sys, ne_dyn_vec_t *dyn, double *params)
	Order parameter performance measure function.
double	ne_per_dyn_orderparam_integral (ne_sys_t *sys, ne_dyn_vec_t *dyn, double *params)
	Adapted order parameter performance measure function.
double	ne_per_dyn_orderparam_calc_mu (ne_sys_t *sys, ne_dyn_vec_t *dyn, int t, double delta)
	Calculates mu required during calculation of order parameter.
ne_per_t *	ne_per_dyn_bounded_alloc (ne_real_t tEnd)
	Allocate bounded synchronisation dynamical performance measure.
double	ne_per_dyn_bounded (ne_sys_t *sys, ne_dyn_vec_t *dyn, double *params)
	Bounded synchronisation function.

---

Detailed Description

Performance measure library.

Performance measures are used by NetEvo to compare two systems and can be viewed as a selective pressure on the system. Here are a library of built in performance functions. Although allocation is performance on a per measure basis, freeing is performed by the same ne_per_free function.

Author:

T.E. Gorochowski

Definition in file ne_per_lib.h.

---

Function Documentation

double ne_per_dyn_bounded	(	ne_sys_t *	sys,
		ne_dyn_vec_t *	dyn,
		double *	params
	)

Bounded synchronisation function.

ne_per_t* ne_per_dyn_bounded_alloc

(

ne_real_t

tEnd

)

Allocate bounded synchronisation dynamical performance measure.

Calculates the boundedness of the current dynamics. This is calculated by taking a section at the end of the simulation (given by parameter) and estimating the bound by finding the maximum squared norm error between all pairs of trajectories. So for example, a perfectly synchronised system would have a bound of 0.

Definition at line 182 of file ne_per_lib.c.

double ne_per_dyn_orderparam	(	ne_sys_t *	sys,
		ne_dyn_vec_t *	dyn,
		double *	params
	)

Order parameter performance measure function.

ne_per_t* ne_per_dyn_orderparam_alloc

(

ne_real_t

delta

)

Allocate order parameter dynamical performance measure.

Calcuates the percentage of the network that has become synchronised within an error bound epsilon based on simulated time-series.

Definition at line 77 of file ne_per_lib.c.

double ne_per_dyn_orderparam_calc_mu	(	ne_sys_t *	sys,
		ne_dyn_vec_t *	dyn,
		int	t,
		double	delta
	)

Calculates mu required during calculation of order parameter.

Definition at line 140 of file ne_per_lib.c.

double ne_per_dyn_orderparam_integral	(	ne_sys_t *	sys,
		ne_dyn_vec_t *	dyn,
		double *	params
	)

Adapted order parameter performance measure function.

Calculates an adapted version of the Order Parameter which takes transient behaviour into consideration. Does this by calculating the integral for the whole time-series.

double ne_per_top_eigenratio	(	ne_sys_t *	sys,
		ne_dyn_vec_t *	dyn,
		ne_real_t *	params
	)

Eigenratio performance measure function.

Definition at line 50 of file ne_per_lib.c.

ne_per_t* ne_per_top_eigenratio_alloc

(

void

)

Allocate eigenratio topological performance measure for network laplcaican.

Calculate by l_N / l_2 of the network laplacian where l_N and l_2 are the Nth and 2nd eigenratios.

Definition at line 31 of file ne_per_lib.c.