How to plot timeline branches graphs in Python

You just need to plot all your data using matplotlib

so that each next list starts where the first one ends in the next year, here's an example:

import datetime
import matplotlib.pyplot as plt
import numpy as np


x = np.array([datetime.datetime(i, 1, 1) for i in range(2012,2018)])
y = np.array([1,10,14,23,22,15])

x2 = np.array([datetime.datetime(i, 1, 1) for i in range(2013,2018)])
y2 = np.array([10,54,39,62,45])

x3 = np.array([datetime.datetime(i, 1, 1) for i in range(2014,2018)])
y3 = np.array([14,43,27,65])

x4 = np.array([datetime.datetime(i, 1, 1) for i in range(2015,2018)])
y4 = np.array([23,39,85])

plt.plot(x,y)
plt.plot(x2,y2)
plt.plot(x3,y3)
plt.plot(x4,y4)

plt.tight_layout()

fig = plt.gcf()
fig.show()

      

        
        
        
      

    

A note y2

starts with y[1]

, y3

starts with y[2]

, etc. Also note that x

, x2

... are gradually changing, to get started in a given year.