Python modularity_probtune_und_sign Examples

Example #1

File: modularity_tests.py Project: poldrack/bctpy

def test_modularity_probtune_und_sign():
	x = load_signed_sample()
	seed = 59468096
	ci,q = bct.modularity_probtune_und_sign(x, seed=seed)
	print q
	assert np.allclose(q, .07885327)

	seed = 1742447
	ci,_ = bct.modularity_louvain_und_sign(x, seed=seed)
	_,oq = bct.modularity_finetune_und_sign(x, seed=seed, ci=ci)
	
	for i in np.arange(.05, .5, .02):
		fails=0
		for j in xrange(100):
			_,q = bct.modularity_probtune_und_sign(x, ci=ci, p=i)
			try:
				assert q < oq
			except AssertionError:
				if fails > 5: raise
				else: fails+=1

Example #2

File: modularity_tests.py Project: talcloud/bctpy

def test_modularity_probtune_und_sign():
    x = load_signed_sample()
    seed = 59468096
    ci, q = bct.modularity_probtune_und_sign(x, seed=seed)
    print(q)
    assert np.allclose(q, .07885327)

    seed = 1742447
    ci, _ = bct.modularity_louvain_und_sign(x, seed=seed)
    _, oq = bct.modularity_finetune_und_sign(x, seed=seed, ci=ci)

    for i in np.arange(.05, .5, .02):
        fails = 0
        for j in range(100):
            _, q = bct.modularity_probtune_und_sign(x, ci=ci, p=i)
            try:
                assert q < oq
            except AssertionError:
                if fails > 5:
                    raise
                else:
                    fails += 1

Example #3

File: bct_sbx.py Project: CarloNicolini/pyconnectivity

def sample_degenerate_partitions(w, probtune_cap=.10, modularity_cutoff=.95):
    ntries = 0
    while True:
        init_ci, _ = bct.modularity_louvain_und_sign(w)
        seed_ci, seed_q = bct.modularity_finetune_und_sign(w, ci=init_ci)

        p = (np.random.random() * probtune_cap)
        ci, q = bct.modularity_probtune_und_sign(w, ci=seed_ci, p=p)
        if q > (seed_q * modularity_cutoff):
            print ('found a degenerate partition after %i tries with probtune '
                   'parameter %.3f: %.5f %.5f' % (ntries, p, q, seed_q))
            ntries = 0
            yield ci, q
        else:
            # print 'failed to find degenerate partition, trying again',q,
            # seed_q
            ntries += 1

Example #4

def sample_degenerate_partitions(w, probtune_cap=.10, modularity_cutoff=.95):
    ntries = 0
    while True:
        init_ci, _ = bct.modularity_louvain_und_sign(w)
        seed_ci, seed_q = bct.modularity_finetune_und_sign(w, ci=init_ci)

        p = (np.random.random() * probtune_cap)
        ci, q = bct.modularity_probtune_und_sign(w, ci=seed_ci, p=p)
        if q > (seed_q * modularity_cutoff):
            print(
                'found a degenerate partition after %i tries with probtune '
                'parameter %.3f: %.5f %.5f' % (ntries, p, q, seed_q))
            ntries = 0
            yield ci, q
        else:
            # print 'failed to find degenerate partition, trying again',q,
            # seed_q
            ntries += 1