def strengths(cmatrix, edgetype):
""" Computes strength for an undirected or directed graph.
Strength is the sum of all connection weights for individual nodes.
In a directed graph, instrength (outstrength) is the sum of incoming
(outgoing) connection weights for individual nodes. The strength is the
sum of instrength and outstrength.
Parameters
----------
cmatrix : connection/adjacency matrix
Returns
-------
edgetype == 'undirected'
str : strength for all vertices
edgetype == 'directed
str : strength for all vertices (indegree + outdegree)
% is = instrength for all vertices
% os = outstrength for all vertices
Reference: Barrat et al. (2004). Contributor: OS.
Olaf Sporns, Indiana University, 2007/2008
"""
if edgetype == 'undirected':
m = bct.to_gslm(cmatrix.tolist())
strr = bct.strengths_und(m)
strnp = bct.from_gsl(strr)
bct.gsl_free(m)
bct.gsl_free(strr)
return np.asarray(strnp)
else:
m = bct.to_gslm(cmatrix.tolist())
strr = bct.strengths_dir(m)
strnp = bct.from_gsl(strr)
bct.gsl_free(m)
bct.gsl_free(strr)
return np.asarray(strnp)
def strengths(cmatrix, edgetype):
""" Computes strength for an undirected or directed graph.
Strength is the sum of all connection weights for individual nodes.
In a directed graph, instrength (outstrength) is the sum of incoming
(outgoing) connection weights for individual nodes. The strength is the
sum of instrength and outstrength.
Parameters
----------
cmatrix : connection/adjacency matrix
Returns
-------
edgetype == 'undirected'
str : strength for all vertices
edgetype == 'directed
str : strength for all vertices (indegree + outdegree)
% is = instrength for all vertices
% os = outstrength for all vertices
Reference: Barrat et al. (2004). Contributor: OS.
Olaf Sporns, Indiana University, 2007/2008
"""
if edgetype == 'undirected':
m = bct.to_gslm(cmatrix.tolist())
strr = bct.strengths_und(m)
strnp = bct.from_gsl(strr)
bct.gsl_free(m)
bct.gsl_free(strr)
return np.asarray(strnp)
else:
m = bct.to_gslm(cmatrix.tolist())
strr = bct.strengths_dir(m)
strnp = bct.from_gsl(strr)
bct.gsl_free(m)
bct.gsl_free(strr)
return np.asarray(strnp)
def strengths_und(*args): return _bct.strengths_und(*args)
def strengths_und(*args):
return _bct.strengths_und(*args)
def strengths_und(*args): """strengths_und(gsl_matrix CIJ) -> gsl_vector""" return _bct.strengths_und(*args)
def strengths_und(*args):
"""strengths_und(gsl_matrix CIJ) -> gsl_vector"""
return _bct.strengths_und(*args)