Dashed lines from points to axes in matplotlib

Question

I have a set of points which I am plotting like this:

import matplotlib.pyplot as plt`

x = [1,2,3,4,5,6]
y = [1,4,9,16,25,36]

plt.scatter(x, y)

plt.show()         


        

Answer 1

Using hlines and vlines you can plot horizontal and vertical lines respectively.

import matplotlib.pyplot as plt

x = [1,2,3,4,5,6]
y = [1,4,9,16,25,36]

plt.vlines(x, 0, y, linestyle="dashed")
plt.hlines(y, 0, x, linestyle="dashed")
plt.scatter(x, y, zorder=2)

plt.xlim(0,None)
plt.ylim(0,None)
plt.show()