statenames=node_mi.statenames)
# create new network
dbnet = Network("Soliman2014DBN")
# add nodes to network
dbnet.add_nodes([node_m, node_k] + aarray + marray)
# add link: must be prior to defining nodes
dbnet.add_link()
# define nodes
dbnet.define_nodes()
# compile the net
dbnet.compile_net()
# enable autoupdate
dbnet.set_autoupdate()
# save the network
dbnet.save_net("Soliman2014DBN.dne")
# inferences
pfarray = []
for ai in aarray:
beliefs = dbnet.get_node_beliefs(ai)
aistate = np.searchsorted(ai.bins, acrit + 1e-10) - 1
aitruncrv = ai.truncate_rv(aistate, lmd=trunclmd)
lt = np.sum(
beliefs[:aistate]) + beliefs[aistate] * aitruncrv.cdf(acrit)
pfarray.append(1 - lt)
aimeanarray = []
aistdarray = []
# add node
netp.add_nodes([visitAsia])
netp.add_nodes([smoking])
netp.add_nodes([tuberculosis])
netp.add_nodes([cancer])
netp.add_nodes([tbOrCa, xRay])
# add link: must before define nodes
netp.add_link()
# define nodes
netp.define_nodes()
# compile the net
netp.compile_net()
# enable auto updating
netp.set_autoupdate()
# save the network
netp.save_net('ChestClinicNew.dne')
# prior belief
beliefs = netp.get_node_beliefs(tuberculosis)
belief = beliefs[0]
print 'The probability of tuberculosis is {:f}\n'.format(belief)
# posterior belief
netp.enter_finding(xRay, 0)
beliefs = netp.get_node_beliefs(tuberculosis)
belief = beliefs[0]
print 'Given an abnormal X-ray,'
print ' the probability of tuberculosis is {:f}\n'.format(belief)
node_mi.assign_cpt(probs,label=np.asarray(label),statenames=node_mi.statenames)
# create new network
dbnet = Network("Soliman2014DBN")
# add nodes to network
dbnet.add_nodes([node_m, node_k]+aarray+marray)
# add link: must be prior to defining nodes
dbnet.add_link()
# define nodes
dbnet.define_nodes()
# compile the net
dbnet.compile_net()
# enable autoupdate
dbnet.set_autoupdate()
# save the network
dbnet.save_net("Soliman2014DBN.dne")
# inferences
pfarray = []
for ai in aarray:
beliefs = dbnet.get_node_beliefs(ai)
aistate = np.searchsorted(ai.bins, acrit)-1
aitruncrv = ai.truncate_rv(aistate,lmd=trunclmd)
lt = np.sum(beliefs[:aistate])+beliefs[aistate]*aitruncrv.cdf(acrit)
pfarray.append(1-lt)
aimeanarray = []
aistdarray = []
for ai in aarray:
# add node
netp.add_nodes([visitAsia])
netp.add_nodes([smoking])
netp.add_nodes([tuberculosis])
netp.add_nodes([cancer])
netp.add_nodes([tbOrCa, xRay])
# add link: must before define nodes
netp.add_link()
# define nodes
netp.define_nodes()
# compile the net
netp.compile_net()
# enable auto updating
netp.set_autoupdate()
# save the network
netp.save_net('ChestClinicNew.dne')
# prior belief
beliefs = netp.get_node_beliefs(tuberculosis)
belief = beliefs[0]
print 'The probability of tuberculosis is {:f}\n'.format(belief)
# posterior belief
netp.enter_finding(xRay, 0)
beliefs = netp.get_node_beliefs(tuberculosis)
belief = beliefs[0]
print 'Given an abnormal X-ray,'
print ' the probability of tuberculosis is {:f}\n'.format(belief)
