def ex_1():
data = load_data('data.json')
x, y = data['X'], data['Y'].ravel()
plot_data_points(x, y)
ex_1_a(x, y)
ex_1_b(x, y)
ex_1_c(x, y)
def ex_2():
data = load_data('data_nl.json')
x_train, y_train, x_test, y_test = \
data['X'], data['Y'].ravel(), data['XT'], data['YT'].ravel()
plot_data_points(x_train, y_train, x_test, y_test)
ex_2_a(x_train, y_train, x_test, y_test)
