python code to plot cost

import matplotlib.pyplot as plt

%matplotlib inline 

def plot_costs(costs, learning_rate=0.0075):

    plt.plot(np.squeeze(costs))

    plt.ylabel('cost')

    plt.xlabel('iterations (per hundreds)')

    plt.title("Learning rate =" + str(learning_rate))

    plt.show()

#Assuming "costs" is a list of costs obtained during training iterations per hundred

#calling the method with some learning rate

plot_costs(costs, learning_rate)

output: