Esempio n. 1
0
File: main.py Progetto: fedffm/nn
""" Which dataset would you like to test?"""
# 0 = Iris dataset
# 1 = Pima Indians dataset
dataset = 0

if dataset == 0:
    filename = "datasets/iris.data"
    targets = ['Iris-setosa', 'Iris-virginica', 'Iris-versicolor']
elif dataset == 1:
    filename = "datasets/pima-indians-diabetes.data"
    targets = [0, 1]

# Create the network
nn = NeuralNetwork()
nn.loadDataset(filename)
nn.normalize()
nn.createNetwork([2, 3], targets)
numCorrect = 0

# Make the predictions
for i in range(1):
    nn.feed(nn.testingSet[i])
    print("Instance", i + 1, ": predicted =", nn.getClassification(), "actual =", nn.testingSet[i][-1])
    if nn.getClassification() == nn.testingSet[i][-1]:
        numCorrect += 1

nn.propagateBack()


# Output the accuracy
accuracy = (float(numCorrect) / len(nn.testingSet)) * 100.0