Python - MatplotLib - Annotate Last Point

Question

Wondering How to add Marker + Corresponding value to the last point of a series.

To plot my series I use :

var= pd.read_excel("ExcelFilePath")
x = list(var['Date'])
y = list(var['Values'])
plt.plot(x,y,label='blabla')

Which Give (For example) :

How would I get this :

Answer 1

You could use the Plotly Library for this.

e.g.

import plotly.express as px
df = px.data.gapminder().query("continent == 'Oceania'")
fig = px.line(df, x='year', y='lifeExp', color='country', markers=True)
fig.show()

This will give you an output:

Answer 2

You could use annotate:

import numpy as np

x = np.linspace(0,6.5)
y = np.sin(x)

plt.plot(x,y,label='blabla')

plt.plot(x[-1], y[-1], marker='+')
plt.annotate(f'({x[-1]:.2f}, {y[-1]:.2f})', (x[-1], y[-1]), ha='right')

output: