Commit 19cee4ba authored by Tiago Peixoto's avatar Tiago Peixoto
Browse files

ModularityState: minor fixes

parent 05eb1d20
......@@ -119,7 +119,7 @@ class ModularityState(MCMCState, MultiflipMCMCState, MultilevelMCMCState,
if b is None:
self.b = self.g.new_vp("int32_t")
elif isinstance(b, PropertyMap):
self.b = b.copy("int32_t")
self.b = self.g.own_property(b).copy("int32_t")
else:
self.b = self.g.new_vp("int32_t", vals=b)
......@@ -135,11 +135,6 @@ class ModularityState(MCMCState, MultiflipMCMCState, MultilevelMCMCState,
def __copy__(self):
return self.copy()
def __deepcopy__(self, memo):
g = copy.deepcopy(self.g, memo)
b = copy.deepcopy(self.b, memo)
return self.copy(g=g, b=b)
def copy(self, g=None, b=None):
r"""Copies the state. The parameters override the state properties, and
have the same meaning as in the constructor."""
......@@ -158,14 +153,16 @@ class ModularityState(MCMCState, MultiflipMCMCState, MultilevelMCMCState,
def get_B(self):
r"Returns the total number of blocks."
return len(np.unique(self.b.fa))
rs = np.unique(self.b.fa)
return len(rs)
def get_Be(self):
r"""Returns the effective number of blocks, defined as :math:`e^{H}`, with
:math:`H=-\sum_r\frac{n_r}{N}\ln \frac{n_r}{N}`, where :math:`n_r` is
the number of nodes in group r.
"""
w = np.array(np.bincount(self.b.fa), dtype="double")
w = np.bincount(self.b.fa)
w = np.array(w, dtype="double")
w = w[w>0]
w /= w.sum()
return np.exp(-(w*log(w)).sum())
......
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