Vertical and horizontal lines on a chart using matplotlib in python
import matplotlib.pyplot as plt
x = [1,2,3,4,5,6,7,8,9,10]
y = [1,3,2,5,4,7,6,9,8,10]
l = [2,4,8]
plt.plot(x,y)
plt.axvline(5,color='red',linestyle='dashed',linewidth=4)
plt.axhline(3,c='b',ls=':',lw=3)
plt.vlines(l,ymin=1,ymax=10)
plt.hlines([5,7,8],xmin=1,xmax=10,color='g',linestyle='-.',lw=2)
plt.ylim(1,10)
plt.xlim(1,10)
plt.show()
https://matplotlib.org/stable/api/_as...