module_connectivity Namespace Reference

Module for computing connectivity maps probabilities. More...

Classes
class	ConnectivityError
	Error returned by module_connectivity. More...
class	ConnectivityPoint
	Associate a Coordinate element (point) with a float (density). More...
class	ConnectivityMap
	Contains the list of ConnectivityPoint objects on a given grid. More...

Functions
def	point_distribution
	Giving a seed point, computes distrib_n other points on the same radial surface using some probability distribution. More...
def	point_distribution_gaussian
	Giving a seed point, computes distrib_n other points on the same radial surface using a gaussian probability distribution. More...
def	build_density
	Giving a list of points, computes the number of points in each bin of an hardcoded grid (ndens x ndens). More...
def	reverse_sort
	Sort a ConnectPoint list with density and return another. More...
def	proba2alpha
	From a list of probability densities (in [dens_min,dens_max]) return a list of coefficient in [0,1]. More...

Variables
int	nproba = 1000
	Probability cloud point number. More...
int	ndens = 360
	Density grid point number. More...

Detailed Description

Module for computing connectivity maps probabilities.

Assess heliospheric model uncertainty by computing a distribution of probable point around the source surface point result.
Given a point distribution, build the map of point density in an hardcoded grid.

Todo:

Add Rui's uncertainty method.

Function Documentation

def module_connectivity.build_density

(

points

)

Giving a list of points, computes the number of points in each bin of an hardcoded grid (ndens x ndens).

Parameters

points

List of Coordinate objects

Returns

ConnectivityMap object with this grid bin used:

• interface xi=[0:360:dx]
• interface yi=[-90:90:dy]
• center of cells xc=[0.5:359.5:dx]
• center of cells yc=[-89.5:89.5:dy]

where and

def module_connectivity.point_distribution	(		distrib_type,
			distrib_n,
			seed_point
	)

Giving a seed point, computes distrib_n other points on the same radial surface using some probability distribution.

Parameters

distrib_type	Distribution type chosen in the following: GAUSSIAN
distrib_n	Distribution type of output points
seed_point	Coordinate input object

Returns

List of Coordinate objects.

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def module_connectivity.point_distribution_gaussian	(		distrib_n,
			seed_point
	)

Giving a seed point, computes distrib_n other points on the same radial surface using a gaussian probability distribution.

Parameters

distrib_n	Distribution type of output points
seed_point	Coordinate input object

Returns

List of Coordinate objects.

Todo:

Input checking

Check if seed_point is well given

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def module_connectivity.proba2alpha

(

densities

)

From a list of probability densities (in [dens_min,dens_max]) return a list of coefficient in [0,1].

Used for plotting densities.

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def module_connectivity.reverse_sort

(

connect_points

)

Sort a ConnectPoint list with density and return another.

Parameters

connect_points

ConnectPoint list

Returns

List of ordered ConnectPoint objects

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Variable Documentation

module_connectivity.ndens = 360

Density grid point number.

Number of points in each axis of the hardcoded grid used by module_connectivity.build_density.

module_connectivity.nproba = 1000

Probability cloud point number.

Number of output points derived from a source surface point in Probability section of connect_sc or connect_all.