def reduce(alist: Alist, children: List[Alist], G: InferenceGraph):
delimiter = ';;'
total = 0.0
numList = []
nonNumList = []
inst_vars = alist.instantiated_attributes().keys()
for c in children:
for k, v in c.instantiated_attributes().items():
if k not in inst_vars and k in alist.attributes and k != tt.OP:
c.instantiate_variable(k, v)
opVarValue = c.get(c.get(tt.OPVAR))
if isinstance(opVarValue, str):
opVarValue = list(map(str, opVarValue.split(delimiter)))
else:
opVarValue = [opVarValue]
for opval in opVarValue:
if utils.is_numeric(opval):
total += float(opval)
numList.append(float(opval))
if not str(opval).startswith(vx.NESTING):
nonNumList.append(str(opval))
else:
# if not c.get(c.get(tt.OPVAR)).startswith(vx.NESTING):
# nonNumList.append(c.get(c.get(tt.OPVAR)))
nonNumList.append(opval)
if numList or nonNumList:
if len(numList) >= len(nonNumList):
opVar = alist.get(tt.OPVAR)
valueToReturn = total / len(children)
if opVar == alist.get(tt.TIME):
valueToReturn = str(int(valueToReturn))
alist.instantiate_variable(opVar, valueToReturn)
else:
# # get modal value
# valueToReturn = max(nonNumList, key=nonNumList.count)
counts = dict(Counter(nonNumList))
counts_set = set(counts.values())
max_val = max(counts_set)
items = [x for x, y in counts.items() if y == max_val]
valueToReturn = f'{delimiter} '.join(map(str, set(items)))
# if len(nonNumList) == 1:
# valueToReturn = nonNumList[0]
# else:
# # return list of different values
# valueToReturn = ', '.join(map(str,set(nonNumList)))
alist.instantiate_variable(alist.get(tt.OPVAR), valueToReturn)
else:
return None
alist.instantiate_variable(
tt.COV,
estimate_uncertainty(children,
len(numList) == len(children), alist.get(tt.OP),
len(children)))
return alist
def test_getInstantiatedAttributes(self):
alist = Alist(
**{
tt.ID: '1',
tt.SUBJECT: 'Africa',
tt.PROPERTY: 'P1082',
tt.OBJECT: '?x',
tt.TIME: '2010',
tt.OPVAR: '?x',
tt.COST: 1
})
alist.set('#d', 34)
alist.set('?x', 100)
instantiatedVars = alist.instantiated_attributes()
self.assertTrue(
len(instantiatedVars) > 0,
"there should be 2 instantiated variables.")
