def test_manual_build(self):
print('Testing: Manual build with NiceCXBuilder')
nice_cx_builder = NiceCXBuilder()
node_id_1 = nice_cx_builder.add_node(name=1, represents=2)
node_id_2 = nice_cx_builder.add_node(name='node%s' % str(2), represents='DEF')
try:
nice_cx_builder.add_node_attribute(node_id_1, 'testing_attr', None)
except TypeError as te:
print('Correctly identified bad node value')
nice_cx_builder.add_node_attribute(node_id_1, 'testing_attr_double', [1.2, 2.5, 2.7])
nice_cx_builder.add_node_attribute(node_id_1, 'testing_attr_int', [16, 4, 8])
nice_cx_builder.add_node_attribute(node_id_1, 'testing_attr_int', [16, 4, 8]) # duplicate - should be ignored
nice_cx_builder.add_node_attribute(node_id_1, 'testing_attr_int', [16, 4, 8]) # duplicate - should be ignored
try:
nice_cx_builder.add_node_attribute(node_id_1, 'testing_attr2', [10.2, 20.5, 'abc'], type='list_of_float')
except ValueError:
print('Correctly identified bad value in node attribute list')
edge_id = nice_cx_builder.add_edge(id=1, source=node_id_1, target=node_id_2, interaction='test-relationship')
nice_cx_builder.add_edge_attribute(edge_id, 'testing_attr', [1.2, 2.5, '2.7'], type='list_of_float')
nice_cx_builder.add_edge_attribute(edge_id, 'testing_attr', [1.2, 2.5, '2.7'], type='list_of_float') # duplicate - should be ignored
nice_cx_builder.add_edge_attribute(edge_id, 'testing_attr', [1.2, 2.5, '2.7'], type='list_of_float') # duplicate - should be ignored
try:
nice_cx_builder.add_edge_attribute(edge_id, 'testing_attr2', [10.2, 20.5, 'abc'], type='list_of_float')
except ValueError:
print('Correctly identified bad value in list')
nice_cx_builder.set_name('Network manual build')
nice_cx_builder.nice_cx.set_namespaces({'ndex context': 'http://dev.ndexbio.org'})
nice_cx = nice_cx_builder.get_nice_cx()
node_attrs = nice_cx.get_node_attributes(node_id_1)
edge_attrs = nice_cx.get_edge_attributes(edge_id)
upload_message = nice_cx.upload_to(upload_server, upload_username, upload_password)
self.assertTrue(upload_message)
node1_attr_double = nice_cx.get_node_attribute(node_id_1, 'testing_attr_double')
self.assertTrue(node1_attr_double.get('d') == 'list_of_double')
node1_attr_int = nice_cx.get_node_attribute(node_id_1, 'testing_attr_int')
self.assertTrue(node1_attr_int.get('d') == 'list_of_integer')
self.assertTrue(len(node_attrs) == 2)
self.assertTrue(len(edge_attrs) == 1)
def create_nice_cx_from_pandas(df,
source_field=None,
target_field=None,
source_node_attr=[],
target_node_attr=[],
edge_attr=[],
edge_interaction=None,
source_represents=None,
target_represents=None):
"""
Create a :py:func:`~ndex2.nice_cx_network.NiceCXNetwork` from a pandas dataframe in which each row
specifies one edge in the network.
If only the df argument is provided the dataframe is treated as 'SIF' format,
where the first two columns specify the source and target node ids of the edge
and all other columns are ignored. The edge interaction is defaulted to "interacts-with"
If both the source_field and target_field arguments are provided, the those and any other
arguments refer to headers in the dataframe, controlling the mapping of columns to
the attributes of nodes, and edges in the resulting
:py:func:`~ndex2.nice_cx_network.NiceCXNetwork`. If a header is not
mapped the corresponding column is ignored. If the edge_interaction is not specified it
defaults to "interacts-with"
:param df: pandas dataframe to process
:param source_field: header name specifying the name of the source node.
:param target_field: header name specifying the name of the target node.
:param source_node_attr: list of header names specifying attributes of the source node.
:param target_node_attr: list of header names specifying attributes of the target node.
:param edge_attr: list of header names specifying attributes of the edge.
:param edge_interaction: the relationship between the source node and the target node, defaulting to "interacts-with"
:return: NiceCXNetwork
:rtype: :py:func:`~ndex2.nice_cx_network.NiceCXNetwork`
"""
my_nicecx = NiceCXNetwork()
# ====================================================
# IF NODE FIELD NAME (SOURCE AND TARGET) IS PROVIDED
# THEN USE THOSE FIELDS OTHERWISE USE INDEX 0 & 1
# ====================================================
my_nicecx.set_name('Pandas Upload')
#my_nicecx.add_metadata_stub('networkAttributes')
count = 0
source_predicate = ''
target_predicate = ''
niceCxBuilder = NiceCXBuilder()
if source_field and target_field:
for index, row in df.iterrows():
if count % 1000 == 0:
print(count)
count += 1
# =============
# ADD NODES
# =============
if source_represents is not None:
source_node_id = niceCxBuilder.add_node(
name=source_predicate + str(row[source_field]),
represents=source_predicate + str(row[source_represents]))
else:
source_node_id = niceCxBuilder.add_node(
name=source_predicate + str(row[source_field]),
represents=source_predicate + str(row[source_field]))
if target_represents is not None:
target_node_id = niceCxBuilder.add_node(
name=target_predicate + str(row[target_field]),
represents=target_predicate + str(row[target_represents]))
else:
target_node_id = niceCxBuilder.add_node(
name=target_predicate + str(row[target_field]),
represents=target_predicate + str(row[target_field]))
# =============
# ADD EDGES
# =============
if edge_interaction:
if row.get(edge_interaction):
use_this_interaction = row[edge_interaction]
else:
use_this_interaction = edge_interaction
else:
use_this_interaction = 'interacts-with'
niceCxBuilder.add_edge(id=index,
source=source_node_id,
target=target_node_id,
interaction=use_this_interaction)
# ==============================
# ADD SOURCE NODE ATTRIBUTES
# ==============================
for sp in source_node_attr:
#TODO - need to be smarter about how data type is inferred
#row[sp], attr_type = _infer_data_type(row[sp])
attr_type = None
#attr_type = None
#if type(row[sp]) is float and math.isnan(row[sp]):
# row[sp] = ''
# attr_type = 'float'
#elif type(row[sp]) is float and math.isinf(row[sp]):
# row[sp] = 'Inf'
# attr_type = 'float'
#elif type(row[sp]) is float:
# attr_type = 'float'
#elif isinstance(row[sp], int):
# attr_type = 'integer'
if sp == 'citation' and not isinstance(row[sp], list):
row[sp] = [row[sp]]
attr_type = 'list_of_string'
niceCxBuilder.add_node_attribute(source_node_id,
sp,
str(row[sp]),
type=attr_type)
# ==============================
# ADD TARGET NODE ATTRIBUTES
# ==============================
for tp in target_node_attr:
#TODO - need to be smarter about how data type is inferred
#row[tp], attr_type = _infer_data_type(row[tp])
attr_type = None
#attr_type = None
#if type(row[tp]) is float and math.isnan(row[tp]):
# row[tp] = ''
# attr_type = 'float'
#elif type(row[tp]) is float and math.isinf(row[tp]):
# row[tp] = 'Inf'
# attr_type = 'float'
#elif type(row[tp]) is float:
# attr_type = 'float'
#elif isinstance(row[tp], int):
# attr_type = 'integer'
if tp == 'citation' and not isinstance(row[tp], list):
row[tp] = [row[tp]]
attr_type = 'list_of_string'
niceCxBuilder.add_node_attribute(target_node_id,
tp,
str(row[tp]),
type=attr_type)
# ==============================
# ADD EDGE ATTRIBUTES
# ==============================
for ep in edge_attr:
#TODO - need to be smarter about how data type is inferred
#row[ep], attr_type = _infer_data_type(row[ep])
attr_type = None
#attr_type = None
#if type(row[ep]) is float and math.isnan(row[ep]):
# row[ep] = ''
# attr_type = 'float'
#elif type(row[ep]) is float and math.isinf(row[ep]):
# row[ep] = 'INFINITY'
# attr_type = 'float'
if ep == 'citation' and not isinstance(row[ep], list):
row[ep] = [row[ep]]
attr_type = 'list_of_string'
niceCxBuilder.add_edge_attribute(property_of=index,
name=ep,
values=row[ep],
type=attr_type)
else:
for index, row in df.iterrows():
# =============
# ADD NODES
# =============
source_node_id = niceCxBuilder.add_node(name=str(row[0]),
represents=str(row[0]))
target_node_id = niceCxBuilder.add_node(name=str(row[1]),
represents=str(row[1]))
# =============
# ADD EDGES
# =============
if len(row) > 2:
niceCxBuilder.add_edge(id=index,
source=source_node_id,
target=target_node_id,
interaction=row[2])
else:
niceCxBuilder.add_edge(id=index,
source=source_node_id,
target=target_node_id,
interaction='interacts-with')
return niceCxBuilder.get_nice_cx() # my_nicecx
def create_nice_cx_from_networkx(G):
"""
Creates a :py:class:`~ndex2.nice_cx_network.NiceCXNetwork` based on a
networkx graph.
The resulting :py:class:`~ndex2.nice_cx_network.NiceCXNetwork`
contains the nodes, edges and their attributes from the networkx graph and also
preserves the graph 'pos' attribute as a CX cartesian coordinates aspect.
The node name is taken from the networkx node id. Node 'represents' is
taken from the networkx node attribute 'represents'
:param G: networkx graph
:type G: networkx graph
:return: NiceCXNetwork
:rtype: :py:class:`~ndex2.nice_cx_network.NiceCXNetwork`
"""
niceCxBuilder = NiceCXBuilder()
if G is None:
raise Exception('Networkx input is empty')
my_nicecx = NiceCXNetwork()
if G.graph.get('name'):
my_nicecx.set_name(G.graph.get('name'))
else:
my_nicecx.set_name('created from networkx')
my_nicecx.add_metadata_stub('networkAttributes')
#=========================================
# Check to see if the node label is same
# (case insensitive) as 'name' attribute
#=========================================
#use_node_label = False
#for n, d in G.nodes_iter(data=True):
# if not isinstance(n, int) and d and d.get('name'):
# if n.lower() == d.get('name').lower():
# use_node_label = True
# break
for n, d in G.nodes(data=True):
# =============
# ADD NODES
# =============
#if d and d.get('name'):
# if isinstance(n, int):
# node_id = niceCxBuilder.add_node(name=d.get('name'),represents=d.get('name'), id=n, map_node_ids=True)
# else:
# # If networkx node is of type string then maybe the 'name' atribute is no longer accurate
# if use_node_label:
# node_id = niceCxBuilder.add_node(name=n,represents=n, map_node_ids=True)
# else:
# node_id = niceCxBuilder.add_node(name=d.get('name'),represents=d.get('name'), map_node_ids=True)
#else:
if isinstance(n, int):
node_id = niceCxBuilder.add_node(name=n,
represents=d.get('represents'),
id=n,
map_node_ids=True)
else:
node_id = niceCxBuilder.add_node(name=n,
represents=d.get('represents'),
map_node_ids=True)
# ======================
# ADD NODE ATTRIBUTES
# ======================
for k, v in d.items():
use_this_value, attr_type = niceCxBuilder._infer_data_type(
v, split_string=True)
if k == 'citation' and not isinstance(use_this_value, list):
use_this_value = [use_this_value]
attr_type = 'list_of_string'
if use_this_value is not None:
niceCxBuilder.add_node_attribute(node_id,
k,
use_this_value,
type=attr_type)
index = 0
for u, v, d in G.edges(data=True):
# =============
# ADD EDGES
# =============
if d.get('interaction') is None or d.get('interaction') == 'null':
interaction = 'neighbor-of'
else:
interaction = d.get('interaction')
if isinstance(u, int):
niceCxBuilder.add_edge(source=u,
target=v,
interaction=interaction,
id=index)
else:
niceCxBuilder.add_edge(source=niceCxBuilder.node_id_lookup.get(u),
target=niceCxBuilder.node_id_lookup.get(v),
interaction=interaction,
id=index)
# ==============================
# ADD EDGE ATTRIBUTES
# ==============================
for k, val in d.items():
if k != 'interaction':
use_this_value, attr_type = niceCxBuilder._infer_data_type(
val, split_string=True)
if k == 'citation' and not isinstance(use_this_value, list):
use_this_value = [use_this_value]
attr_type = 'list_of_string'
if use_this_value is not None:
niceCxBuilder.add_edge_attribute(property_of=index,
name=k,
values=use_this_value,
type=attr_type)
index += 1
if hasattr(G, 'pos'):
aspect = _create_cartesian_coordinates_aspect_from_networkx(G)
niceCxBuilder.add_opaque_aspect('cartesianLayout', aspect)
return niceCxBuilder.get_nice_cx()
def test_context(self):
print('Testing: context')
context = {
'signor': 'http://signor.uniroma2.it/relation_result.php?id=',
'BTO': 'http://identifiers.org/bto/BTO:',
'uniprot': 'http://identifiers.org/uniprot/',
'pubmed': 'http://identifiers.org/pubmed/',
'CID': 'http://identifiers.org/pubchem.compound/',
'SID': 'http://identifiers.org/pubchem.substance/',
'chebi': 'http://identifiers.org/chebi/CHEBI:'
}
nice_cx_builder = NiceCXBuilder()
nice_cx_builder.set_context(context)
node_id_1 = nice_cx_builder.add_node(name='ABC', represents='ABC')
node_id_2 = nice_cx_builder.add_node(name='DEF', represents='DEF')
nice_cx_builder.add_node_attribute(node_id_1, 'testing_attr_double',
[1.2, 2.5, 2.7])
nice_cx_builder.add_node_attribute(node_id_1, 'diffusion_output_heat',
'1.4599107187941883E-4')
nice_cx_builder.add_node_attribute(node_id_2, 'diffusion_output_heat',
'1.2387941883E-4')
nice_cx_builder.add_node_attribute(node_id_1, 'aliases', [
'uniprot knowledgebase:Q5I2A4', 'uniprot knowledgebase:Q8N7E5',
'uniprot knowledgebase:Q8TAZ6'
])
nice_cx_builder.add_node_attribute(node_id_1, 'diffusion_output_rank',
1)
nice_cx_builder.add_node_attribute(node_id_2, 'diffusion_output_rank',
2)
edge_id = nice_cx_builder.add_edge(id=1,
source=node_id_1,
target=node_id_2,
interaction='test-relationship')
nice_cx_builder.add_edge_attribute(edge_id,
'citation', ['pubmed:21880741'],
type='list_of_string')
nice_cx = nice_cx_builder.get_nice_cx()
node_attr_to_change = nice_cx.get_node_attribute(
node_id_1, 'testing_attr_double')
node_attr_to_change['v'] = [1.0, 2.0, 3.0]
#for node_id, node in nice_cx.get_nodes():
#node_attr_to_condition = nice_cx.get_node_attribute(node_id, 'diffusion_output_heat')
#node_attr_to_condition['v'] = ("%0.15f" % float(node_attr_to_condition.get('v')))
#node_attr_array_to_string = nice_cx.get_node_attribute(node_id, 'aliases')
#node_attr_to_condition['v'] = ("%0.15f" % float(node_attr_to_condition.get('v')))
#nice_cx.remove_node_attribute(node_id, 'aliases')
R = nice_cx.to_networkx()
nos = []
for n in R.nodes():
if R.node[n]['diffusion_output_rank'] < 10:
R.node[n]['nid'] = n
nos.append(R.node[n])
nos = sorted(nos, key=lambda k: k['diffusion_output_rank'])
for no in nos:
print("id: " + str(no['nid']) + " name: " + no['nid'] + " rank: " +
str(no['diffusion_output_rank']) + " heat: " +
str(no['diffusion_output_heat']))
node_list2 = next(iter(nice_cx.nodes))
node_list = list(nice_cx.get_nodes())
print(list(nice_cx.get_nodes()))
with open('my_cx.cx', 'w') as file:
json.dump(nice_cx.to_cx(), file)
upload_message = nice_cx.upload_to(upload_server, upload_username,
upload_password)
self.assertTrue(upload_message)
def test_context(self):
print('Testing: context')
context = {
'signor': 'http://signor.uniroma2.it/relation_result.php?id=',
'BTO': 'http://identifiers.org/bto/BTO:',
'uniprot': 'http://identifiers.org/uniprot/',
'pubmed': 'http://identifiers.org/pubmed/',
'CID': 'http://identifiers.org/pubchem.compound/',
'SID': 'http://identifiers.org/pubchem.substance/',
'chebi': 'http://identifiers.org/chebi/CHEBI:'
}
nice_cx_builder = NiceCXBuilder()
nice_cx_builder.set_context(context)
node_id_1 = nice_cx_builder.add_node(name='ABC', represents='ABC')
node_id_2 = nice_cx_builder.add_node(name='DEF', represents='DEF')
nice_cx_builder.add_node_attribute(node_id_1, 'testing_attr_double', [1.2, 2.5, 2.7])
nice_cx_builder.add_node_attribute(node_id_1, 'diffusion_output_heat', '1.4599107187941883E-4')
nice_cx_builder.add_node_attribute(node_id_2, 'diffusion_output_heat', '1.2387941883E-4')
nice_cx_builder.add_node_attribute(node_id_1, 'aliases', ['uniprot knowledgebase:Q5I2A4', 'uniprot knowledgebase:Q8N7E5', 'uniprot knowledgebase:Q8TAZ6'])
nice_cx_builder.add_node_attribute(node_id_1, 'diffusion_output_rank', 1)
nice_cx_builder.add_node_attribute(node_id_2, 'diffusion_output_rank', 2)
edge_id = nice_cx_builder.add_edge(id=1, source=node_id_1, target=node_id_2, interaction='test-relationship')
nice_cx_builder.add_edge_attribute(edge_id, 'citation', ['pubmed:21880741'], type='list_of_string')
nice_cx = nice_cx_builder.get_nice_cx()
node_attr_to_change = nice_cx.get_node_attribute(node_id_1, 'testing_attr_double')
node_attr_to_change['v'] = [1.0, 2.0, 3.0]
#for node_id, node in nice_cx.get_nodes():
#node_attr_to_condition = nice_cx.get_node_attribute(node_id, 'diffusion_output_heat')
#node_attr_to_condition['v'] = ("%0.15f" % float(node_attr_to_condition.get('v')))
#node_attr_array_to_string = nice_cx.get_node_attribute(node_id, 'aliases')
#node_attr_to_condition['v'] = ("%0.15f" % float(node_attr_to_condition.get('v')))
#nice_cx.remove_node_attribute(node_id, 'aliases')
R = nice_cx.to_networkx()
nos = []
for n in R.nodes():
if R.node[n]['diffusion_output_rank'] < 10:
R.node[n]['nid'] = n
nos.append(R.node[n])
nos = sorted(nos, key=lambda k: k['diffusion_output_rank'])
for no in nos:
print("id: " + str(no['nid']) + " name: " + no['nid'] + " rank: " + str(
no['diffusion_output_rank']) + " heat: " + str(no['diffusion_output_heat']))
node_list2 = next(iter(nice_cx.nodes))
node_list = list(nice_cx.get_nodes())
print(list(nice_cx.get_nodes()))
with open('my_cx.cx', 'w') as file:
json.dump(nice_cx.to_cx(), file)
upload_message = nice_cx.upload_to(upload_server, upload_username, upload_password)
self.assertTrue(upload_message)
def create_nice_cx_from_pandas(df, source_field=None, target_field=None,
source_node_attr=[], target_node_attr=[],
edge_attr=[], edge_interaction=None, source_represents=None, target_represents=None):
"""
Create a NiceCXNetwork from a pandas dataframe in which each row
specifies one edge in the network.
If only the df argument is provided the dataframe is treated as 'SIF' format,
where the first two columns specify the source and target node ids of the edge
and all other columns are ignored. The edge interaction is defaulted to "interacts-with"
If both the source_field and target_field arguments are provided, the those and any other
arguments refer to headers in the dataframe, controlling the mapping of columns to
the attributes of nodes, and edges in the resulting NiceCXNetwork. If a header is not
mapped the corresponding column is ignored. If the edge_interaction is not specified it
defaults to "interacts-with"
:param df: pandas dataframe to process
:param source_field: header name specifying the name of the source node.
:param target_field: header name specifying the name of the target node.
:param source_node_attr: list of header names specifying attributes of the source node.
:param target_node_attr: list of header names specifying attributes of the target node.
:param edge_attr: list of header names specifying attributes of the edge.
:param edge_interaction: the relationship between the source node and the target node, defaulting to "interacts-with"
:return: NiceCXNetwork
"""
my_nicecx = NiceCXNetwork()
# ====================================================
# IF NODE FIELD NAME (SOURCE AND TARGET) IS PROVIDED
# THEN USE THOSE FIELDS OTHERWISE USE INDEX 0 & 1
# ====================================================
my_nicecx.set_name('Pandas Upload')
#my_nicecx.add_metadata_stub('networkAttributes')
count = 0
source_predicate = ''
target_predicate = ''
niceCxBuilder = NiceCXBuilder()
if source_field and target_field:
for index, row in df.iterrows():
if count % 1000 == 0:
print(count)
count += 1
# =============
# ADD NODES
# =============
if source_represents is not None:
source_node_id = niceCxBuilder.add_node(name=source_predicate + str(row[source_field]), represents=source_predicate + str(row[source_represents]))
else:
source_node_id = niceCxBuilder.add_node(name=source_predicate + str(row[source_field]), represents=source_predicate + str(row[source_field]))
if target_represents is not None:
target_node_id = niceCxBuilder.add_node(name=target_predicate + str(row[target_field]), represents=target_predicate + str(row[target_represents]))
else:
target_node_id = niceCxBuilder.add_node(name=target_predicate + str(row[target_field]), represents=target_predicate + str(row[target_field]))
# =============
# ADD EDGES
# =============
if edge_interaction:
if row.get(edge_interaction):
use_this_interaction = row[edge_interaction]
else:
use_this_interaction = edge_interaction
else:
use_this_interaction = 'interacts-with'
niceCxBuilder.add_edge(id=index, source=source_node_id, target=target_node_id, interaction=use_this_interaction)
# ==============================
# ADD SOURCE NODE ATTRIBUTES
# ==============================
for sp in source_node_attr:
#TODO - need to be smarter about how data type is inferred
#row[sp], attr_type = _infer_data_type(row[sp])
attr_type = None
#attr_type = None
#if type(row[sp]) is float and math.isnan(row[sp]):
# row[sp] = ''
# attr_type = 'float'
#elif type(row[sp]) is float and math.isinf(row[sp]):
# row[sp] = 'Inf'
# attr_type = 'float'
#elif type(row[sp]) is float:
# attr_type = 'float'
#elif isinstance(row[sp], int):
# attr_type = 'integer'
if sp == 'citation' and not isinstance(row[sp], list):
row[sp] = [row[sp]]
attr_type = 'list_of_string'
niceCxBuilder.add_node_attribute(source_node_id, sp, str(row[sp]), type=attr_type)
# ==============================
# ADD TARGET NODE ATTRIBUTES
# ==============================
for tp in target_node_attr:
#TODO - need to be smarter about how data type is inferred
#row[tp], attr_type = _infer_data_type(row[tp])
attr_type = None
#attr_type = None
#if type(row[tp]) is float and math.isnan(row[tp]):
# row[tp] = ''
# attr_type = 'float'
#elif type(row[tp]) is float and math.isinf(row[tp]):
# row[tp] = 'Inf'
# attr_type = 'float'
#elif type(row[tp]) is float:
# attr_type = 'float'
#elif isinstance(row[tp], int):
# attr_type = 'integer'
if tp == 'citation' and not isinstance(row[tp], list):
row[tp] = [row[tp]]
attr_type = 'list_of_string'
niceCxBuilder.add_node_attribute(target_node_id, tp, str(row[tp]), type=attr_type)
# ==============================
# ADD EDGE ATTRIBUTES
# ==============================
for ep in edge_attr:
#TODO - need to be smarter about how data type is inferred
#row[ep], attr_type = _infer_data_type(row[ep])
attr_type = None
#attr_type = None
#if type(row[ep]) is float and math.isnan(row[ep]):
# row[ep] = ''
# attr_type = 'float'
#elif type(row[ep]) is float and math.isinf(row[ep]):
# row[ep] = 'INFINITY'
# attr_type = 'float'
if ep == 'citation' and not isinstance(row[ep], list):
row[ep] = [row[ep]]
attr_type = 'list_of_string'
niceCxBuilder.add_edge_attribute(property_of=index, name=ep, values=row[ep], type=attr_type)
else:
for index, row in df.iterrows():
# =============
# ADD NODES
# =============
source_node_id = niceCxBuilder.add_node(name=str(row[0]), represents=str(row[0]))
target_node_id = niceCxBuilder.add_node(name=str(row[1]), represents=str(row[1]))
# =============
# ADD EDGES
# =============
if len(row) > 2:
niceCxBuilder.add_edge(id=index, source=source_node_id, target=target_node_id, interaction=row[2])
else:
niceCxBuilder.add_edge(id=index, source=source_node_id, target=target_node_id, interaction='interacts-with')
return niceCxBuilder.get_nice_cx() # my_nicecx
def create_nice_cx_from_networkx(G):
"""
Creates a NiceCXNetwork based on a networkx graph. The resulting NiceCXNetwork
contains the nodes edges and their attributes from the networkx graph and also
preserves the graph 'pos' attribute as a CX cartesian coordinates aspect.
Node name is taken from the networkx node id. Node 'represents' is
taken from the networkx node attribute 'represents'
:param G: networkx graph
:type G: networkx graph
:return: NiceCXNetwork
:rtype: NiceCXNetwork
"""
niceCxBuilder = NiceCXBuilder()
if G is None:
raise Exception('Networkx input is empty')
my_nicecx = NiceCXNetwork()
if G.graph.get('name'):
my_nicecx.set_name(G.graph.get('name'))
else:
my_nicecx.set_name('created from networkx')
my_nicecx.add_metadata_stub('networkAttributes')
#=========================================
# Check to see if the node label is same
# (case insensitive) as 'name' attribute
#=========================================
#use_node_label = False
#for n, d in G.nodes_iter(data=True):
# if not isinstance(n, int) and d and d.get('name'):
# if n.lower() == d.get('name').lower():
# use_node_label = True
# break
for n, d in G.nodes(data=True):
# =============
# ADD NODES
# =============
#if d and d.get('name'):
# if isinstance(n, int):
# node_id = niceCxBuilder.add_node(name=d.get('name'),represents=d.get('name'), id=n, map_node_ids=True)
# else:
# # If networkx node is of type string then maybe the 'name' atribute is no longer accurate
# if use_node_label:
# node_id = niceCxBuilder.add_node(name=n,represents=n, map_node_ids=True)
# else:
# node_id = niceCxBuilder.add_node(name=d.get('name'),represents=d.get('name'), map_node_ids=True)
#else:
if isinstance(n, int):
node_id = niceCxBuilder.add_node(name=n,represents=d.get('represents'), id=n, map_node_ids=True)
else:
node_id = niceCxBuilder.add_node(name=n, represents=d.get('represents'), map_node_ids=True)
# ======================
# ADD NODE ATTRIBUTES
# ======================
for k, v in d.items():
use_this_value, attr_type = niceCxBuilder._infer_data_type(v, split_string=True)
if k == 'citation' and not isinstance(use_this_value, list):
use_this_value = [use_this_value]
attr_type = 'list_of_string'
if use_this_value is not None:
niceCxBuilder.add_node_attribute(node_id, k, use_this_value, type=attr_type)
index = 0
for u, v, d in G.edges(data=True):
# =============
# ADD EDGES
# =============
if d.get('interaction') is None or d.get('interaction') == 'null':
interaction = 'neighbor-of'
else:
interaction = d.get('interaction')
if isinstance(u, int):
niceCxBuilder.add_edge(source=u, target=v, interaction=interaction, id=index)
else:
niceCxBuilder.add_edge(source=niceCxBuilder.node_id_lookup.get(u), target=niceCxBuilder.node_id_lookup.get(v),
interaction=interaction, id=index)
# ==============================
# ADD EDGE ATTRIBUTES
# ==============================
for k, val in d.items():
if k != 'interaction':
use_this_value, attr_type = niceCxBuilder._infer_data_type(val, split_string=True)
if k == 'citation' and not isinstance(use_this_value, list):
use_this_value = [use_this_value]
attr_type = 'list_of_string'
if use_this_value is not None:
niceCxBuilder.add_edge_attribute(property_of=index, name=k, values=use_this_value, type=attr_type)
index += 1
if hasattr(G, 'pos'):
aspect = _create_cartesian_coordinates_aspect_from_networkx(G)
niceCxBuilder.add_opaque_aspect('cartesianLayout', aspect)
return niceCxBuilder.get_nice_cx()
def create_nice_cx_from_pandas(df,
source_field=None,
target_field=None,
source_node_attr=[],
target_node_attr=[],
edge_attr=[],
edge_interaction=None,
source_represents=None,
target_represents=None):
"""
Create a :py:func:`~ndex2.nice_cx_network.NiceCXNetwork` from a :py:class:`pandas.DataFrame`
in which each row specifies one edge in the network.
.. versionchanged:: 3.5.0
Removed print statements showing progress and network name is
now being set
If only the **df** argument is provided the :py:class:`pandas.DataFrame` is treated
as 'SIF' format, where the first two columns specify the source and target node ids
of the edge and all other columns are ignored. The edge interaction is
defaulted to "interacts-with"
If both the source_field and target_field arguments are provided, then those and any other
arguments refer to headers in the :py:class:`pandas.DataFrame`, controlling the
mapping of columns to the attributes of nodes, and edges in the resulting
:py:func:`~ndex2.nice_cx_network.NiceCXNetwork`.
If a header is not mapped, the corresponding column is ignored.
If the edge_interaction is not specified, interaction is set to "interacts-with"
.. code-block:: python
import ndex2
import pandas as pd
data = {'source': ['Node 1','Node 2'],
'target': ['Node 2','Node 3'],
'interaction': ['helps', 'hurts']}
df = pd.DataFrame.from_dict(data)
net = ndex2.create_nice_cx_from_pandas(df, source_field='source',
target_field='target',
edge_interaction='interaction')
print(net.get_nodes())
print(net.get_edges())
.. note::
The datatype for everything added to the network is the CX string type
:param df: Pandas dataframe to process
:type df: :py:class:`pandas.DataFrame`
:param source_field: header name specifying the name of the source node.
:type source_field: str
:param target_field: header name specifying the name of the target node.
:type target_field: str
:param source_node_attr: list of header names specifying attributes of the source node.
:type source_node_attr: list
:param target_node_attr: list of header names specifying attributes of the target node.
:type target_node_attr: list
:param edge_attr: list of header names specifying attributes of the edge.
:type edge_attr: list
:param edge_interaction: the relationship between the source node and the
target node, defaulting to "interacts-with"
:type edge_interaction: str
:param source_represents:
:type source_represents: str
:param target_represents:
:type target_represents: str
:return: NiceCXNetwork
:rtype: :py:func:`~ndex2.nice_cx_network.NiceCXNetwork`
"""
# ====================================================
# IF NODE FIELD NAME (SOURCE AND TARGET) IS PROVIDED
# THEN USE THOSE FIELDS OTHERWISE USE INDEX 0 & 1
# ====================================================
source_predicate = ''
target_predicate = ''
cx_builder = NiceCXBuilder()
cx_builder.set_name('created from pandas by '
'ndex2.create_nice_cx_from_pandas()')
if source_field and target_field:
for index, row in df.iterrows():
# =============
# ADD NODES
# =============
if source_represents is not None:
source_node_id = cx_builder.add_node(
name=source_predicate + str(row[source_field]),
represents=source_predicate + str(row[source_represents]))
else:
source_node_id = cx_builder.add_node(
name=source_predicate + str(row[source_field]),
represents=source_predicate + str(row[source_field]))
if target_represents is not None:
target_node_id = cx_builder.add_node(
name=target_predicate + str(row[target_field]),
represents=target_predicate + str(row[target_represents]))
else:
target_node_id = cx_builder.add_node(
name=target_predicate + str(row[target_field]),
represents=target_predicate + str(row[target_field]))
# =============
# ADD EDGES
# =============
if edge_interaction:
if row.get(edge_interaction):
use_this_interaction = row[edge_interaction]
else:
use_this_interaction = edge_interaction
else:
use_this_interaction = 'interacts-with'
cx_builder.add_edge(id=index,
source=source_node_id,
target=target_node_id,
interaction=use_this_interaction)
# ==============================
# ADD SOURCE NODE ATTRIBUTES
# ==============================
for sp in source_node_attr:
#TODO - need to be smarter about how data type is inferred
#row[sp], attr_type = _infer_data_type(row[sp])
attr_type = None
#attr_type = None
#if type(row[sp]) is float and math.isnan(row[sp]):
# row[sp] = ''
# attr_type = 'float'
#elif type(row[sp]) is float and math.isinf(row[sp]):
# row[sp] = 'Inf'
# attr_type = 'float'
#elif type(row[sp]) is float:
# attr_type = 'float'
#elif isinstance(row[sp], int):
# attr_type = 'integer'
if sp == 'citation' and not isinstance(row[sp], list):
row[sp] = [row[sp]]
attr_type = 'list_of_string'
cx_builder.add_node_attribute(source_node_id,
sp,
str(row[sp]),
type=attr_type)
# ==============================
# ADD TARGET NODE ATTRIBUTES
# ==============================
for tp in target_node_attr:
#TODO - need to be smarter about how data type is inferred
#row[tp], attr_type = _infer_data_type(row[tp])
attr_type = None
#attr_type = None
#if type(row[tp]) is float and math.isnan(row[tp]):
# row[tp] = ''
# attr_type = 'float'
#elif type(row[tp]) is float and math.isinf(row[tp]):
# row[tp] = 'Inf'
# attr_type = 'float'
#elif type(row[tp]) is float:
# attr_type = 'float'
#elif isinstance(row[tp], int):
# attr_type = 'integer'
if tp == 'citation' and not isinstance(row[tp], list):
row[tp] = [row[tp]]
attr_type = 'list_of_string'
cx_builder.add_node_attribute(target_node_id,
tp,
str(row[tp]),
type=attr_type)
# ==============================
# ADD EDGE ATTRIBUTES
# ==============================
for ep in edge_attr:
#TODO - need to be smarter about how data type is inferred
#row[ep], attr_type = _infer_data_type(row[ep])
attr_type = None
#attr_type = None
#if type(row[ep]) is float and math.isnan(row[ep]):
# row[ep] = ''
# attr_type = 'float'
#elif type(row[ep]) is float and math.isinf(row[ep]):
# row[ep] = 'INFINITY'
# attr_type = 'float'
if ep == 'citation' and not isinstance(row[ep], list):
row[ep] = [row[ep]]
attr_type = 'list_of_string'
cx_builder.add_edge_attribute(property_of=index,
name=ep,
values=row[ep],
type=attr_type)
else:
for index, row in df.iterrows():
# =============
# ADD NODES
# =============
source_node_id = cx_builder.add_node(name=str(row[0]),
represents=str(row[0]))
target_node_id = cx_builder.add_node(name=str(row[1]),
represents=str(row[1]))
# =============
# ADD EDGES
# =============
if len(row) > 2:
cx_builder.add_edge(id=index,
source=source_node_id,
target=target_node_id,
interaction=row[2])
else:
cx_builder.add_edge(id=index,
source=source_node_id,
target=target_node_id,
interaction='interacts-with')
return cx_builder.get_nice_cx() # my_nicecx
def create_nice_cx_from_networkx(G):
"""
Creates a :py:class:`~ndex2.nice_cx_network.NiceCXNetwork` based on a
:class:`networkx.Graph` graph.
.. versionchanged:: 3.5.0
Major refactor to fix multiple bugs #83, #84, #90
.. code-block:: python
import ndex2
import networkx as nx
G = nx.Graph()
G.add_node(1, someval=1.5, name='node 1')
G.add_node(2, someval=2.5, name='node 2')
G.add_edge(1, 2, weight=5)
print(ndex2.create_nice_cx_from_networkx(G).to_cx())
The resulting :py:class:`~ndex2.nice_cx_network.NiceCXNetwork`
contains the nodes, edges and their attributes from the
:class:`networkx.Graph`
graph and also preserves the graph 'pos' attribute as a CX
cartesian coordinates aspect
:py:const:`~ndex2.constants.CARTESIAN_LAYOUT_ASPECT`
with the values of `Y` inverted
Description of how conversion is performed:
**Network:**
* Network name is set value of ``G.graph.get('name')`` or to
``created from networkx by ndex2.create_nice_cx_networkx()`` if
`name` is ``None`` or not present
**Nodes:**
* Node id is value of ``n`` from this for loop:
``for n, d G.nodes(data=True):`` if ``n`` is **NOT** an
:py:class:`int`, new ids starting from ``0`` are used
* Node name is value of `name` attribute on the node or is
set to id of node if `name` is not present.
* Node `represents` is value of `represents` attribute on the
node or set is to node `name` if ``None`` or not present
**Edges:**
* Interaction is value of `interaction` attribute on the edge
or is set to ``neighbor-of`` if ``None`` or not present
.. note::
Data types are inferred by using :py:func:`isinstance` and
converted to corresponding CX data types. For list items,
only the 1st item is examined to determine type
:param G: Graph to convert
:type G: :class:`networkx.Graph`
:raises Exception: if **G** parameter is ``None`` or there is another error
in conversion
:return: Converted network
:rtype: :py:class:`~ndex2.nice_cx_network.NiceCXNetwork`
"""
cx_builder = NiceCXBuilder()
if G is None:
raise Exception('Networkx input is empty')
network_name = G.graph.get('name')
if network_name is not None:
cx_builder.set_name(network_name)
else:
cx_builder.set_name('created from networkx by '
'ndex2.create_nice_cx_networkx()')
for n, d in G.nodes(data=True):
if isinstance(n, int):
n_name = d.get('name')
if n_name is None:
n_name = str(n)
node_id = cx_builder.add_node(name=n_name,
represents=d.get('represents'),
id=n,
map_node_ids=True)
else:
node_id = cx_builder.add_node(name=n,
represents=d.get('represents'),
map_node_ids=True)
# ======================
# ADD NODE ATTRIBUTES
# ======================
for k, v in d.items():
# if node attribute is 'name' skip it cause that will be used
# for name of node, also skip 'represents'
# fix for https://github.com/ndexbio/ndex2-client/issues/84
if k == 'name' or k == 'represents':
continue
use_this_value, attr_type = cx_builder._infer_data_type(
v, split_string=False)
# This might go away, waiting on response to
# https://ndexbio.atlassian.net/browse/UD-2181
if k == 'citation' and not isinstance(use_this_value, list):
use_this_value = [str(use_this_value)]
attr_type = constants.LIST_OF_STRING
if use_this_value is not None:
cx_builder.add_node_attribute(node_id,
k,
use_this_value,
type=attr_type)
index = 0
for u, v, d in G.edges(data=True):
# =============
# ADD EDGES
# =============
if d.get('interaction') is None or d.get('interaction') == 'null':
interaction = 'neighbor-of'
else:
interaction = d.get('interaction')
if isinstance(u, int):
cx_builder.add_edge(source=u,
target=v,
interaction=interaction,
id=index)
else:
cx_builder.add_edge(source=cx_builder.node_id_lookup.get(u),
target=cx_builder.node_id_lookup.get(v),
interaction=interaction,
id=index)
# ==============================
# ADD EDGE ATTRIBUTES
# ==============================
for k, val in d.items():
if k == 'interaction':
continue
use_this_value, attr_type = cx_builder._infer_data_type(
val, split_string=False)
# This might go away, waiting on response to
# https://ndexbio.atlassian.net/browse/UD-2181
if k == 'citation' and not isinstance(use_this_value, list):
use_this_value = [str(use_this_value)]
attr_type = constants.LIST_OF_STRING
if use_this_value is not None:
cx_builder.add_edge_attribute(property_of=index,
name=k,
values=use_this_value,
type=attr_type)
index += 1
if hasattr(G, 'pos'):
aspect = _create_cartesian_coordinates_aspect_from_networkx(G)
cx_builder.add_opaque_aspect(constants.CARTESIAN_LAYOUT_ASPECT, aspect)
return cx_builder.get_nice_cx()
