Below is the code that I am trying to execute on Google Colab using Qiskit. I'll also paste the error that I am getting.
Code
backend = Aer.get_backend('qasm_simulator')
# create Quantum Register called "qr" with 4 qubits
qr = QuantumRegister(4, name="qr")
# create Quantum Register called "cr" with 4 qubits
cr = ClassicalRegister(4, name="cr")
# Creating Quantum Circuit called "qc" involving your Quantum Register "qr"
# and your Classical Register "cr"
qc = QuantumCircuit(qr, cr, name="solve_linear_sys")
# Initialize times that we get the result vector
n0 = 0
n1 = 0
for i in range(10):
#Set the input|b> state"
qc.x(qr[2])
#Set the phase estimation circuit
qc.h(qr[0])
qc.h(qr[1])
qc.u1(pi, qr[0])
qc.u1(pi/2, qr[1])
qc.cx(qr[1], qr[2])
#The quantum inverse Fourier transform
qc.h(qr[0])
qc.cu1(-pi/2, qr[0], qr[1])
qc.h(qr[1])
#R（lamda^-1） Rotation
qc.x(qr[1])
qc.cu3(pi/16, 0, 0, qr[0], qr[3])
qc.cu3(pi/8, 0, 0, qr[1], qr[3])
#Uncomputation
qc.x(qr[1])
qc.h(qr[1])
qc.cu1(pi/2, qr[0], qr[1])
qc.h(qr[0])
qc.cx(qr[1], qr[2])
qc.u1(-pi/2, qr[1])
qc.u1(-pi, qr[0])
qc.h(qr[1])
qc.h(qr[0])
# To measure the whole quantum register
qc.measure(qr[0], cr[0])
qc.measure(qr[1], cr[1])
qc.measure(qr[2], cr[2])
qc.measure(qr[3], cr[3])
job = execute(qc, backend=backend, shots=8192,)
result = job.result()
# Get the sum og all results
n0 = n0 + result.get_data("solve_linear_sys")['counts']['1000']
n1 = n1 + result.get_data("solve_linear_sys")['counts']['1100']
# print the result
print(result)
# print(result.get_data(qc))
plot_histogram(result.get_counts())
# Reset the circuit
qc.reset(qr)
# calculate the scale of the elements in result vectot and print it.
p = n0/n1
print(n0)
print(n1)
print(p)
Error
AttributeError Traceback (most recent call last)
<ipython-input-15-0331fdb77f03> in <module>()
54
55 # Get the sum og all results
---> 56 n0 = n0 + result.get_data("solve_linear_sys")['counts']['1000']
57 n1 = n1 + result.get_data("solve_linear_sys")['counts']['1100']
58
AttributeError: 'Result' object has no attribute 'get_data'
Has the item get_data been removed?
