model.train()
total_loss = 0
for batch in train_loader:
batch_X, batch_y = batch
batch_X = batch_X.to(device)
batch_y = batch_y.to(device)
# TODO: Complete this train method to train the model provided.
# zero accumulated gradients
optimizer.zero_grad()
# get the output from the model
output = model.forward(batch_X)
# calculate the loss and perform backprop
loss = loss_fn(output, batch_y)
loss.backward()
optimizer.step()
total_loss += loss.data.item()
print("Epoch: {}, BCELoss: {}".format(epoch, total_loss / len(train_loader)))
if __name__ == '__main__':
# All of the model parameters and training parameters are sent as arguments when the script
# is executed. Here we set up an argument parser to easily access the parameters.
parser = argparse.ArgumentParser()
