IMP::statistics::ConfigurationSetXYZEmbedding Class Reference

Embed a configuration using the XYZ coordinates of a set of particles. More...

#include <IMP/statistics/embeddings.h>

Inheritance diagram for IMP::statistics::ConfigurationSetXYZEmbedding:

Public Member Functions
	ConfigurationSetXYZEmbedding (ConfigurationSet *cs, SingletonContainerAdaptor pi, bool align=false)
virtual void	do_show (std::ostream &out) const
unsigned int	get_number_of_items () const
algebra::VectorKD	get_point (unsigned int i) const
algebra::VectorKDs	get_points () const

Additional Inherited Members
Protected Member Functions inherited from IMP::statistics::Embedding
	Embedding (std::string name)
Related Functions inherited from IMP::statistics::Embedding
typedef IMP::base::Vector < IMP::base::WeakPointer < Embedding > >	EmbeddingsTemp

Detailed Description

The point for each configuration of the model is a concatenation of the Cartesian coordinates of the particles contained in the passed SingletonContainer.

See ConfigurationSet for more information about the input.

## \example kernel/basic_optimization.py
## This illustrates a basic main loop for optimization and searching for the best
## scoring conformation.
##

import IMP.example
import IMP.statistics

(m,c)=IMP.example.create_model_and_particles()
ps= IMP.core.DistancePairScore(IMP.core.HarmonicLowerBound(1,1))
r= IMP.container.PairsRestraint(ps, IMP.container.ClosePairContainer(c, 2.0))
m.add_restraint(r)
# we don't want to see lots of log messages about restraint evaluation
m.set_log_level(IMP.WARNING)

# the container (c) stores a list of particles, which are alse XYZR particles
# we can construct a list of all the decorated particles
xyzrs= c.get_particles()

s= IMP.core.MCCGSampler(m)
s.set_number_of_attempts(10)
# but we do want something to watch
s.set_log_level(IMP.base.TERSE)
s.set_number_of_monte_carlo_steps(10)
# find some configurations which move the particles far apart
configs= s.get_sample();
for i in range(0, configs.get_number_of_configurations()):
    configs.load_configuration(i)
    # print out the sphere containing the point set
    # - Why? - Why not?
    sphere= IMP.core.get_enclosing_sphere(xyzrs)
    print sphere

# cluster the solutions based on their coordinates
e= IMP.statistics.ConfigurationSetXYZEmbedding(configs, c)

# of course, this doesn't return anything of interest since the points are
# randomly distributed, but, again, why not?
clustering = IMP.statistics.create_lloyds_kmeans(e, 3, 1000)
for i in range(0,clustering.get_number_of_clusters()):
    # load the configuration for a central point
    configs.load_configuration(clustering.get_cluster_representative(i))
    sphere= IMP.core.get_enclosing_sphere(xyzrs)
    print sphere

Definition at line 30 of file embeddings.h.

Constructor & Destructor Documentation

IMP::statistics::ConfigurationSetXYZEmbedding::ConfigurationSetXYZEmbedding	(	ConfigurationSet *	cs,
		SingletonContainerAdaptor	pi,
		bool	align = false
	)

If align is true, all the configurations are rigidly aligned with the first before generating their coordinates.

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The documentation for this class was generated from the following file:

• embeddings.h