コード例 #1
0
model = save_load.load_model(path_name)

sc_output = MinMaxScaler(feature_range = (0,1))
sc_output.fit(input_set[:,output_col]) 

# prediction using train data
pred_train_scaled = model.predict(X_train)

# rescaling for predictions ( train data )
train_predict = sc_output.inverse_transform(pred_train_scaled)
train_actual = sc_output.inverse_transform(y_train) 

print('R2 Score : ', r2_score(train_actual, train_predict))
print('MSE Score : ', mean_squared_error(train_actual, train_predict))

plot.time_series_plot(train_actual, train_predict, 'red', 'blue', 'actual_open', \
                 'predicted_open', 'days', 'price', 'Neural Network (single attribute - train data)')


pred_test_scaled = model.predict(X_test)

# rescaling for predictions ( test data )
test_predict = sc_output.inverse_transform(pred_test_scaled)
#test = sc_output.inverse_transform(testing_set_scaled)

test_actual = sc_output.inverse_transform(y_test)

print('R2 Score : ', r2_score(test_actual, test_predict))
print('MSE Score : ', mean_squared_error(test_actual, test_predict))

plot.time_series_plot(test_actual, test_predict, 'red', 'blue', 'actual_open', \
                 'predicted_open', 'days', 'price', 'Neural Network (single attribute - test data)')
コード例 #2
0
# loading the model
path_name_open = "./model/trading_model/open"
model_open = save_load.load_model(path_name_open)

# prediction using train set
output_open_scaled = model_open.predict(X_test_open)

# rescaling for predictions ( train data )
output_open = sc_output.inverse_transform(output_open_scaled)
actual_open = sc_output.inverse_transform(y_test_open)

# analysis using opening price
print('R2 Score : ', r2_score(actual_open, output_open))
print('MSE Score : ', mean_squared_error(actual_open, output_open))
plot.time_series_plot(actual_open, output_open, 'red', 'blue', 'actual', \
                      'predicted', 'days', 'open price', 'Neural Network (trading)')

# loading the model
path_name_close = "./model/trading_model/close"
model_close = save_load.load_model(path_name_close)

# prediction using train set
output_close_scaled = model_close.predict(X_test_close)

# rescaling for predictions ( train data )
output_close = sc_output.inverse_transform(output_close_scaled)
actual_close = sc_output.inverse_transform(y_test_close)

# analysis using closing price
print('R2 Score : ', r2_score(actual_close, output_close))
print('MSE Score : ', mean_squared_error(actual_close, output_close))
コード例 #3
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# actual output
test_actual = sc_output.inverse_transform(y_test)

# creating dataframe for storing result
results = pd.DataFrame(columns=['feature_col', 'r2_score', 'mse_score'])

count = 0
for i in range(no_of_feature):
    for j in range(len(combination[i])):
        feature = np.array(combination[i][j])
        # loading the model
        model = save_load.load_model(path_name + "/" + str(count))
        # prediction
        pred_test_scaled = model.predict(X_test[:, :, feature])
        test_predict = sc_output.inverse_transform(pred_test_scaled)
        # evaluation
        model_accuracy_r2 = r2_score(test_actual, test_predict)
        model_accuracy_mse = mean_squared_error(test_actual, test_predict)
        print("feature: {}\n r2_score: {}\n mse_score: {}\n".format(feature, \
              model_accuracy_r2, model_accuracy_mse))
        plot.time_series_plot(test_actual, test_predict, 'red', 'blue', \
                              'actual_close', 'predicted_close', 'days', 'price',\
                              'Neural Network (multiple attributes - train data)')

        results.loc[count] = [feature, model_accuracy_r2, model_accuracy_mse]
        count = count + 1

results.to_excel("./result/feature_importance/result.xlsx")

# r2_score: 0.9837941366548775 mse_score: 1830.8363851761196
コード例 #4
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    testing_set_scaled = sc_input.transform(testing_set)
    # creating 3d tensor
    X_test, y_test = tensor.create_tensor(testing_set_scaled, neuron, input_col,\
                                          output_col, no_of_feature)

    for optim in optimiser:
        for func in activation:
            # loading model
            model = save_load.load_model(path_name + "/" + str(count))
            # prediction using test data
            pred_test_scaled = model.predict(X_test)
            # rescaling the predictions
            test_predict = sc_output.inverse_transform(pred_test_scaled)
            test_actual = sc_output.inverse_transform(y_test)
            # score
            model_accuracy_r2 = r2_score(test_actual, test_predict)
            model_accuracy_mse = mean_squared_error(test_actual, test_predict)
            print("r2 : ", model_accuracy_r2)
            print("mse : ", model_accuracy_mse)

            plot.time_series_plot(test_actual, test_predict, 'red', 'blue', 'actual_close',\
                     'predicted_close', 'days', 'price', 'Neural Network')

            count = count + 1

            results.loc[count] = [neuron, optim, func, model_accuracy_r2, \
                       model_accuracy_mse]

results.to_excel("./model/hyperParaModels/hyperparameter_optim.xlsx")

# r2 :  0.9772057086220985, mse :  2575.1554940470696
コード例 #5
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poly_model = LinearRegression()
poly_model = poly_model.fit(X_poly, train_close)

###############################################################################

# prediction using training data
X_poly_train = poly_feat.fit_transform(train_dates)
train_predict = poly_model.predict(X_poly_train)
train_predict = np.array(train_predict).reshape(-1, 1)

# printing scores
print("R2 Score : ", r2_score(train_close, train_predict))
print("MSE Score : ", mean_squared_error(train_close, train_predict))
print("RMSE Score : ", sqrt(mean_squared_error(train_close, train_predict)))

plot.time_series_plot(train_close, train_predict, 'red', 'blue', 'actual_close', \
                 'predicted_close', 'days', 'price', 'Regression Model (traing data)')

# prediction for testing data
X_poly_test = poly_feat.fit_transform(test_dates)
test_predict = poly_model.predict(X_poly_test)
test_predict = np.array(test_predict).reshape(-1, 1)

# printing scores
print("R2 Score : ", r2_score(test_close, test_predict))
print("MSE Score : ", mean_squared_error(test_close, test_predict))
print("RMSE Score : ", sqrt(mean_squared_error(test_close, test_predict)))

plot.time_series_plot(test_close, test_predict, 'red', 'blue', 'actual_close', \
                 'predicted_close', 'days', 'price', 'Regression Model (test data)')

# plotting error
コード例 #6
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for i in range(timestep, timestep + prediction_days):

    X_test = []
    X_test.append(X_test_scaled[i - timestep:i])
    X_test = np.array(X_test).reshape(1, -1)
    X_test = np.reshape(X_test,
                        (X_test.shape[0], X_test.shape[1], no_of_feature))

    output.append(model.predict(X_test))

    X_test_scaled = np.append(X_test_scaled, output)

output = sc.inverse_transform(np.array(output).reshape(-1, 1))
actual = np.array(y_test)

plot.time_series_plot(y_test, output, 'red', 'blue', 'actual_close', \
                 'predicted_close', 'days', 'price', 'Neural Network (multiple attributes - test data)')

# plotting error
error_list = []

for i in range(len(actual)):
    error = ((actual[i] - output[i]) / actual[i]) * 100
    error_list.append(error)

###############################################################################

# saving the results in excel format
date = pd.DataFrame(df_test['Date'].iloc[:prediction_days])
actual_price_df = pd.DataFrame(actual).round(3)
predict_price_df = pd.DataFrame(output).round(3)
error_df = pd.DataFrame(error_list).round(3)