# simple data visualization
import matplotlib.pyplot as plt
plt.plot([1,2,3,4])
plt.show()


# simple data visualization
import matplotlib.pyplot as plt
plt.plot([1,2,3,4], [1,4,9,16], 'ro-')
plt.axis([0, 5, 0, 17])
plt.show()


# muliple plots per figure
import matplotlib.pyplot as plt
plt.subplot(221) 
plt.plot([1, 2, 3, 4], [1, 2, 3, 4], 'bo-')
plt.subplot(222) 
plt.plot([1, 2, 3, 4], [1, 4, 9, 16], 'bo-')
plt.subplot(223)
plt.plot([1, 2, 3, 4], [1, 8, 27, 64], 'bo-')
plt.subplot(224)
plt.plot([1, 2, 3, 4], [1, 2, 3, 4], 'bo-', 
         [1, 2, 3, 4], [1, 8, 27, 64], 'ro-' )
plt.show()